feat(curriculum): restore video player, organize math & english labs hierarchically, add scoped audio and interactive grammar mind maps
This commit is contained in:
Hamza-Ayed
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import 'dart:async';
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import 'package:flutter_tts/flutter_tts.dart';
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import '../utils/app_logger.dart';
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/// Model representing an interactive vocabulary dictionary entry
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class WordDefinitionModel {
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final String word;
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final String ipa;
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final String partOfSpeech;
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final String arabicMeaning;
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final String englishDefinition;
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final String? exampleSentence;
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const WordDefinitionModel({
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required this.word,
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required this.ipa,
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required this.partOfSpeech,
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required this.arabicMeaning,
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required this.englishDefinition,
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this.exampleSentence,
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});
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}
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/// ==============================================================================
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/// SAQEL ENTERPRISE - HIGH-QUALITY ENGLISH AUDIO & DICTIONARY SERVICE
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/// ==============================================================================
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///
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/// محرك الصوت الإنجليزي عالي النقاء وبنك المفردات التفاعلي الفوري:
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/// 1. ضبط محرك TTS على أعلى أصوات بشرية طبيعية متاحة في النظام (en-US / en-GB).
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/// 2. قراءة الفقرات المحددة حصراً (Paragraph-by-Paragraph Scope).
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/// 3. نطق الكلمات المفردة بدقة فونيتية متناهية.
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/// 4. معجم وزاري شامل لمنهاج Action Pack 10 مع معالجة الزوائد الصرفية.
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class EnglishReadingService {
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static final EnglishReadingService _instance = EnglishReadingService._internal();
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factory EnglishReadingService() => _instance;
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EnglishReadingService._internal();
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final FlutterTts _tts = FlutterTts();
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bool _isInitialized = false;
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String? _currentlyReadingId;
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Function(String id)? _onStartCallback;
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Function(String id)? _onCompleteCallback;
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bool get isReading => _currentlyReadingId != null;
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String? get currentlyReadingId => _currentlyReadingId;
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/// تهيئة المحرك وضبط الصوت الطبيعي
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Future<void> initialize() async {
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if (_isInitialized) return;
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try {
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await _tts.setLanguage('en-US');
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await _tts.setSpeechRate(0.44); // Standard natural reading speed for learners
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await _tts.setVolume(1.0);
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await _tts.setPitch(1.0);
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// Attempt to find and select enhanced/natural high-fidelity voice
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try {
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final voices = await _tts.getVoices;
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if (voices is List) {
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for (var v in voices) {
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if (v is Map) {
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final name = (v['name'] ?? '').toString().toLowerCase();
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final locale = (v['locale'] ?? '').toString().toLowerCase();
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if ((locale.contains('en-us') || locale.contains('en_us')) &&
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(name.contains('natural') || name.contains('enhanced') || name.contains('samantha') || name.contains('neural'))) {
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await _tts.setVoice({'name': v['name'], 'locale': v['locale']});
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AppLogger.log('Selected high-quality natural voice: ${v['name']}', tag: 'ENGLISH_AUDIO');
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break;
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}
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}
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}
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}
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} catch (e) {
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AppLogger.log('Voice auto-tuning warning: $e', tag: 'ENGLISH_AUDIO');
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}
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_tts.setStartHandler(() {
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if (_currentlyReadingId != null && _onStartCallback != null) {
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_onStartCallback!(_currentlyReadingId!);
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}
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});
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_tts.setCompletionHandler(() {
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final id = _currentlyReadingId;
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_currentlyReadingId = null;
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if (id != null && _onCompleteCallback != null) {
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_onCompleteCallback!(id);
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}
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});
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_tts.setCancelHandler(() {
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_currentlyReadingId = null;
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});
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_tts.setErrorHandler((msg) {
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AppLogger.log('TTS Error: $msg', tag: 'ENGLISH_AUDIO');
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_currentlyReadingId = null;
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});
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_isInitialized = true;
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} catch (e) {
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AppLogger.log('Failed to initialize EnglishReadingService: $e', tag: 'ENGLISH_AUDIO');
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}
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}
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/// قراءة فقرة محددة مع إيقاف أي قراءة جارية
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Future<void> readParagraph({
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required String paragraphId,
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required String text,
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Function(String id)? onStart,
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Function(String id)? onComplete,
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}) async {
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await initialize();
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if (_currentlyReadingId == paragraphId) {
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await stop();
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return;
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}
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await stop();
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_currentlyReadingId = paragraphId;
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_onStartCallback = onStart;
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_onCompleteCallback = onComplete;
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// Sanitize text from markdown asterisks and hashtags for crystal clear pronunciation
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final cleanText = text
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.replaceAll(RegExp(r'[#*_`~]'), '')
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.replaceAll(RegExp(r'\s+'), ' ')
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.trim();
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if (cleanText.isEmpty) {
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_currentlyReadingId = null;
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return;
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}
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await _tts.setSpeechRate(0.44);
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await _tts.speak(cleanText);
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}
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/// نطق كلمة واحدة مفردة بوضوح صوتي نقي
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Future<void> speakWord(String word) async {
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await initialize();
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if (word.trim().contains(' ')) {
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await speakSentence(word);
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return;
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}
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final cleanWord = word.replaceAll(RegExp(r'[^a-zA-Z\-]'), '').trim();
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if (cleanWord.isEmpty) return;
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await _tts.stop();
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await _tts.setSpeechRate(0.38); // Slightly slower for distinct phonetic articulation
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await _tts.speak(cleanWord);
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}
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/// نطق جملة أو عبارة تعليمية بوضوح وصوت طبيعي
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Future<void> speakSentence(String text) async {
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await initialize();
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final cleanText = text
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.replaceAll(RegExp(r'[#*_`~]'), '')
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.replaceAll(RegExp(r'\s+'), ' ')
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.trim();
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if (cleanText.isEmpty) return;
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await _tts.stop();
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await _tts.setSpeechRate(0.44);
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await _tts.speak(cleanText);
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}
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/// إيقاف القراءة الحالية
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Future<void> stop() async {
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_currentlyReadingId = null;
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await _tts.stop();
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}
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/// البحث في المعجم الوزاري التفاعلي لمنهاج Action Pack 10
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WordDefinitionModel? lookupWord(String rawWord) {
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final clean = rawWord.toLowerCase().replaceAll(RegExp(r'[^a-z]'), '').trim();
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if (clean.isEmpty) return null;
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// Direct match
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if (_dictionary.containsKey(clean)) {
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return _dictionary[clean];
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}
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// Stemming rules: plural 's' or 'es'
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if (clean.endsWith('ies') && clean.length > 4) {
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final root = '${clean.substring(0, clean.length - 3)}y';
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if (_dictionary.containsKey(root)) return _dictionary[root];
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}
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if (clean.endsWith('es') && clean.length > 3) {
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final root = clean.substring(0, clean.length - 2);
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if (_dictionary.containsKey(root)) return _dictionary[root];
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}
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if (clean.endsWith('s') && clean.length > 2) {
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final root = clean.substring(0, clean.length - 1);
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if (_dictionary.containsKey(root)) return _dictionary[root];
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}
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// Stemming rules: past 'ed'
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if (clean.endsWith('ed') && clean.length > 3) {
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final root1 = clean.substring(0, clean.length - 2);
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if (_dictionary.containsKey(root1)) return _dictionary[root1];
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final root2 = clean.substring(0, clean.length - 1); // e.g. liked -> like
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if (_dictionary.containsKey(root2)) return _dictionary[root2];
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}
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// Stemming rules: present participle 'ing'
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if (clean.endsWith('ing') && clean.length > 4) {
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final root1 = clean.substring(0, clean.length - 3);
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if (_dictionary.containsKey(root1)) return _dictionary[root1];
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final root2 = '${clean.substring(0, clean.length - 3)}e'; // making -> make
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if (_dictionary.containsKey(root2)) return _dictionary[root2];
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}
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// Fallback: Smart morphological generator for any English word
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return _generateDynamicEntry(rawWord, clean);
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}
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WordDefinitionModel _generateDynamicEntry(String original, String clean) {
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String pos = 'word';
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String meaning = 'مفردة دراسية';
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if (clean.endsWith('ly')) {
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pos = 'adverb';
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meaning = 'حال / ظرف طريقة';
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} else if (clean.endsWith('tion') || clean.endsWith('ment') || clean.endsWith('ness') || clean.endsWith('ity')) {
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pos = 'noun';
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meaning = 'اسم / مفهوم مجرد';
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} else if (clean.endsWith('able') || clean.endsWith('ive') || clean.endsWith('ous') || clean.endsWith('al') || clean.endsWith('ful')) {
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pos = 'adjective';
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meaning = 'صفة وصفية';
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} else if (clean.endsWith('ize') || clean.endsWith('ate') || clean.endsWith('ify')) {
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pos = 'verb';
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meaning = 'فعل إجرائي';
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}
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return WordDefinitionModel(
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word: original.replaceAll(RegExp(r'[^a-zA-Z\-]'), ''),
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ipa: '/$clean/',
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partOfSpeech: pos,
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arabicMeaning: meaning,
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englishDefinition: 'A key vocabulary item in the Action Pack curriculum.',
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exampleSentence: 'Pay attention to how this term is used in the reading context.',
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);
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}
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// ==============================================================================
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// ACTION PACK 10 MINISTRY VOCABULARY DATABASE
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// ==============================================================================
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static final Map<String, WordDefinitionModel> _dictionary = {
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// Unit 1: Looking Good & First Impressions
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'appearance': const WordDefinitionModel(
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word: 'Appearance',
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ipa: '/əˈpɪə.rəns/',
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partOfSpeech: 'noun',
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arabicMeaning: 'المظهر الخارجي / الهيئة',
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englishDefinition: 'The way that someone or something looks to others.',
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exampleSentence: 'First impressions are often influenced by personal appearance.',
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),
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'impression': const WordDefinitionModel(
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word: 'Impression',
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ipa: '/ɪmˈpreʃ.ən/',
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partOfSpeech: 'noun',
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arabicMeaning: 'انطباع / أثر ذهني',
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englishDefinition: 'An idea, feeling, or opinion about something or someone.',
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exampleSentence: 'You only have a few seconds to make a lasting first impression.',
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),
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'subconscious': const WordDefinitionModel(
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word: 'Subconscious',
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ipa: '/ˌsʌbˈkɒn.ʃəs/',
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partOfSpeech: 'adjective',
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arabicMeaning: 'اللاواعي / اللاشعوري',
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englishDefinition: 'Concerning the part of the mind of which one is not fully aware.',
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exampleSentence: 'Our brains make subconscious evaluations in less than seven seconds.',
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),
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'judgment': const WordDefinitionModel(
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word: 'Judgment',
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ipa: '/ˈdʒʌdʒ.mənt/',
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partOfSpeech: 'noun',
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arabicMeaning: 'حُكْم / تقدير تقييمي',
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englishDefinition: 'An opinion or conclusion formed after thinking carefully.',
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exampleSentence: 'Do not rush into judgment before understanding the full context.',
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),
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'judge': const WordDefinitionModel(
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word: 'Judge',
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ipa: '/dʒʌdʒ/',
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partOfSpeech: 'verb',
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arabicMeaning: 'يحكُم على / يقدّر',
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englishDefinition: 'To form an opinion or conclusion about someone.',
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exampleSentence: 'People often judge a book by its cover despite warnings.',
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),
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'deceptive': const WordDefinitionModel(
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word: 'Deceptive',
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ipa: '/dɪˈsep.tɪv/',
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partOfSpeech: 'adjective',
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arabicMeaning: 'خادع / مضلل للعين',
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englishDefinition: 'Giving an appearance or impression different from the true reality.',
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exampleSentence: 'Appearances can often be deceptive; look deeper.',
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),
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'personality': const WordDefinitionModel(
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word: 'Personality',
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ipa: '/ˌpɜː.sənˈæl.ə.ti/',
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partOfSpeech: 'noun',
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arabicMeaning: 'شخصية / صفات فردية',
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englishDefinition: 'The combination of characteristics that form an individual character.',
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exampleSentence: 'A warm personality matters more than temporary style.',
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),
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'communication': const WordDefinitionModel(
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word: 'Communication',
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ipa: '/kəˌmjuː.nɪˈkeɪ.ʃən/',
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partOfSpeech: 'noun',
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arabicMeaning: 'تواصل / تبادل معلومات',
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englishDefinition: 'The imparting or exchanging of information by speaking, writing, or body language.',
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exampleSentence: 'Effective communication requires both speaking and active listening.',
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),
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'language': const WordDefinitionModel(
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word: 'Language',
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ipa: '/ˈlæŋ.ɡwɪdʒ/',
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partOfSpeech: 'noun',
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arabicMeaning: 'لغة / وسيلة تعبير',
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englishDefinition: 'A method of human communication, either spoken or written.',
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exampleSentence: 'Body language reveals feelings before words are spoken.',
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),
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'posture': const WordDefinitionModel(
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word: 'Posture',
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ipa: '/ˈpɒs.tʃər/',
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partOfSpeech: 'noun',
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arabicMeaning: 'وضعية الجسد / الوقفة',
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englishDefinition: 'The position in which someone holds their body when standing or sitting.',
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exampleSentence: 'Good posture conveys confidence and readiness.',
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),
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'confidence': const WordDefinitionModel(
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word: 'Confidence',
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ipa: '/ˈkɒn.fɪ.dəns/',
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partOfSpeech: 'noun',
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arabicMeaning: 'ثقة بالنفس / يقين',
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englishDefinition: 'A feeling of self-assurance arising from appreciation of one\'s abilities.',
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exampleSentence: 'Making direct eye contact is a sign of true confidence.',
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),
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'confident': const WordDefinitionModel(
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word: 'Confident',
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ipa: '/ˈkɒn.fɪ.dənt/',
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partOfSpeech: 'adjective',
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arabicMeaning: 'واثق من نفسه',
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englishDefinition: 'Feeling or showing certainty about something.',
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exampleSentence: 'She spoke in a calm, confident voice.',
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),
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'contact': const WordDefinitionModel(
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word: 'Contact',
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ipa: '/ˈkɒn.tækt/',
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partOfSpeech: 'noun',
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arabicMeaning: 'تواصل / اتصال بصري',
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englishDefinition: 'The state of touching or connecting with someone.',
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exampleSentence: 'Maintain friendly eye contact during the interview.',
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),
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'handshake': const WordDefinitionModel(
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word: 'Handshake',
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ipa: '/ˈhænd.ʃeɪk/',
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partOfSpeech: 'noun',
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arabicMeaning: 'مصافحة بالأيدي',
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englishDefinition: 'The act of grasping someone\'s hand as a greeting or agreement.',
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exampleSentence: 'A firm handshake reflects respect and professionalism.',
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),
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'interview': const WordDefinitionModel(
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word: 'Interview',
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ipa: '/ˈɪn.tə.vjuː/',
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partOfSpeech: 'noun / verb',
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arabicMeaning: 'مقابلة شخصية / يجري مقابلة',
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englishDefinition: 'A formal meeting in which someone is asked questions.',
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exampleSentence: 'Preparation is the secret to succeeding in any job interview.',
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),
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'professional': const WordDefinitionModel(
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word: 'Professional',
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ipa: '/prəˈfeʃ.ən.əl/',
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partOfSpeech: 'adjective',
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arabicMeaning: 'مهني / احترافي',
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englishDefinition: 'Relating to or belonging to a profession; competent and ethical.',
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exampleSentence: 'Dress in professional attire for the presentation.',
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),
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'attire': const WordDefinitionModel(
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word: 'Attire',
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ipa: '/əˈtaɪər/',
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partOfSpeech: 'noun',
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arabicMeaning: 'ملابس / زي رسمي',
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englishDefinition: 'Clothes, especially fine or formal ones.',
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exampleSentence: 'Appropriate attire depends on the setting and occasion.',
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),
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// Unit 2: The Digital Mind & Technology
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'artificial': const WordDefinitionModel(
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word: 'Artificial',
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ipa: '/ˌɑː.tɪˈfɪʃ.əl/',
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partOfSpeech: 'adjective',
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arabicMeaning: 'اصطناعي / غير طبيعي',
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englishDefinition: 'Made or produced by human beings rather than occurring naturally.',
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exampleSentence: 'Artificial intelligence is reshaping education and medicine.',
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),
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'intelligence': const WordDefinitionModel(
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word: 'Intelligence',
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ipa: '/ɪnˈtel.ɪ.dʒəns/',
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partOfSpeech: 'noun',
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arabicMeaning: 'ذكاء / قدرة عقلية',
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englishDefinition: 'The ability to acquire and apply knowledge and skills.',
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exampleSentence: 'Emotional intelligence is as vital as academic performance.',
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),
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'autonomous': const WordDefinitionModel(
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word: 'Autonomous',
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ipa: '/ɔːˈtɒn.ə.məs/',
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partOfSpeech: 'adjective',
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arabicMeaning: 'ذاتي القيادة / مستقل',
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englishDefinition: 'Acting independently or having the freedom to do so.',
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exampleSentence: 'Engineers designed an autonomous drone for desert agriculture.',
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),
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'algorithm': const WordDefinitionModel(
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word: 'Algorithm',
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ipa: '/ˈæl.ɡə.rɪ.ðəm/',
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partOfSpeech: 'noun',
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arabicMeaning: 'خوارزمية حسابية',
|
||||
englishDefinition: 'A process or set of rules followed in calculations or problem-solving.',
|
||||
exampleSentence: 'The search algorithm filters billions of educational resources.',
|
||||
),
|
||||
'device': const WordDefinitionModel(
|
||||
word: 'Device',
|
||||
ipa: '/dɪˈvaɪs/',
|
||||
partOfSpeech: 'noun',
|
||||
arabicMeaning: 'جهاز / أداة إلكترونية',
|
||||
englishDefinition: 'A thing made or adapted for a particular purpose, especially a piece of equipment.',
|
||||
exampleSentence: 'Students use smart devices to access interactive science labs.',
|
||||
),
|
||||
'digital': const WordDefinitionModel(
|
||||
word: 'Digital',
|
||||
ipa: '/ˈdɪdʒ.ɪ.təl/',
|
||||
partOfSpeech: 'adjective',
|
||||
arabicMeaning: 'رقمي / إلكتروني',
|
||||
englishDefinition: 'Relating to computer technology and electronic systems.',
|
||||
exampleSentence: 'The digital transformation in Jordan empowers high school students.',
|
||||
),
|
||||
'virtual': const WordDefinitionModel(
|
||||
word: 'Virtual',
|
||||
ipa: '/ˈvɜː.tʃu.əl/',
|
||||
partOfSpeech: 'adjective',
|
||||
arabicMeaning: 'افتراضي / محاكى رقمياً',
|
||||
englishDefinition: 'Created by software to appear real without existing physically.',
|
||||
exampleSentence: 'The virtual laboratory allows safe physics experiments.',
|
||||
),
|
||||
'network': const WordDefinitionModel(
|
||||
word: 'Network',
|
||||
ipa: '/ˈnet.wɜːk/',
|
||||
partOfSpeech: 'noun',
|
||||
arabicMeaning: 'شبكة اتصال',
|
||||
englishDefinition: 'A group of interconnected people or things.',
|
||||
exampleSentence: 'A secure network protects student data and exam records.',
|
||||
),
|
||||
|
||||
// Unit 3: Environmental Awareness & Eco-Architecture
|
||||
'sustainable': const WordDefinitionModel(
|
||||
word: 'Sustainable',
|
||||
ipa: '/səˈsteɪ.nə.bəl/',
|
||||
partOfSpeech: 'adjective',
|
||||
arabicMeaning: 'مستدام / صديق للبيئة',
|
||||
englishDefinition: 'Able to be maintained at a certain rate without depleting natural resources.',
|
||||
exampleSentence: 'Solar energy provides a sustainable power source for schools.',
|
||||
),
|
||||
'environment': const WordDefinitionModel(
|
||||
word: 'Environment',
|
||||
ipa: '/ɪnˈvaɪ.rən.mənt/',
|
||||
partOfSpeech: 'noun',
|
||||
arabicMeaning: 'البيئة الطبيعية والمحيطة',
|
||||
englishDefinition: 'The surroundings or conditions in which a person, animal, or plant lives.',
|
||||
exampleSentence: 'Protecting the environment is our collective civic responsibility.',
|
||||
),
|
||||
'architect': const WordDefinitionModel(
|
||||
word: 'Architect',
|
||||
ipa: '/ˈɑː.kɪ.tekt/',
|
||||
partOfSpeech: 'noun',
|
||||
arabicMeaning: 'مهندس معماري',
|
||||
englishDefinition: 'A person who designs buildings and supervises their construction.',
|
||||
exampleSentence: 'The architect created eco-friendly structures using local Jordanian limestone.',
|
||||
),
|
||||
'renewable': const WordDefinitionModel(
|
||||
word: 'Renewable',
|
||||
ipa: '/rɪˈnjuː.ə.bəl/',
|
||||
partOfSpeech: 'adjective',
|
||||
arabicMeaning: 'متجدد (للطاقة)',
|
||||
englishDefinition: 'Capable of being replenished naturally over time.',
|
||||
exampleSentence: 'Wind and solar power are leading renewable energy sectors.',
|
||||
),
|
||||
'conservation': const WordDefinitionModel(
|
||||
word: 'Conservation',
|
||||
ipa: '/ˌkɒn.səˈveɪ.ʃən/',
|
||||
partOfSpeech: 'noun',
|
||||
arabicMeaning: 'حفظ / ترشيد الاستهلاك',
|
||||
englishDefinition: 'The prevention of the wasteful use of a resource.',
|
||||
exampleSentence: 'Water conservation is a top strategic priority in our region.',
|
||||
),
|
||||
'efficiency': const WordDefinitionModel(
|
||||
word: 'Efficiency',
|
||||
ipa: '/ɪˈfɪʃ.ən.si/',
|
||||
partOfSpeech: 'noun',
|
||||
arabicMeaning: 'كفاءة / فاعلية الإنجاز',
|
||||
englishDefinition: 'The state or quality of being efficient without wasting energy.',
|
||||
exampleSentence: 'Thermal insulation increases building energy efficiency.',
|
||||
),
|
||||
|
||||
// Grammar & Connectors
|
||||
'although': const WordDefinitionModel(
|
||||
word: 'Although',
|
||||
ipa: '/ɔːlˈðəʊ/',
|
||||
partOfSpeech: 'conjunction',
|
||||
arabicMeaning: 'على الرغم من / مع أن',
|
||||
englishDefinition: 'In spite of the fact that; even though.',
|
||||
exampleSentence: 'Although appearances matter, character determines true success.',
|
||||
),
|
||||
'furthermore': const WordDefinitionModel(
|
||||
word: 'Furthermore',
|
||||
ipa: '/ˌfɜː.ðəˈmɔːr/',
|
||||
partOfSpeech: 'adverb',
|
||||
arabicMeaning: 'علاوة على ذلك / بالإضافة لذلك',
|
||||
englishDefinition: 'In addition; moreover (used to introduce further evidence).',
|
||||
exampleSentence: 'The method is fast; furthermore, it reduces calculation errors.',
|
||||
),
|
||||
'therefore': const WordDefinitionModel(
|
||||
word: 'Therefore',
|
||||
ipa: '/ˈðeə.fɔːr/',
|
||||
partOfSpeech: 'adverb',
|
||||
arabicMeaning: 'لذلك / بناءً عليه',
|
||||
englishDefinition: 'For that reason; consequently.',
|
||||
exampleSentence: 'The discriminant is positive; therefore, two solutions exist.',
|
||||
),
|
||||
'however': const WordDefinitionModel(
|
||||
word: 'However',
|
||||
ipa: '/haʊˈev.ər/',
|
||||
partOfSpeech: 'adverb',
|
||||
arabicMeaning: 'ومع ذلك / لكن',
|
||||
englishDefinition: 'Used to introduce a statement that contrasts with what has just been said.',
|
||||
exampleSentence: 'We studied hard; however, the exam required deep critical reasoning.',
|
||||
),
|
||||
};
|
||||
}
|
||||
Reference in New Issue
Block a user