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• Difficult sentences 加入 05:16
• Sentence translation
• Sentence translation 加入 09:58
• Unit 8 Technology and future
• Lead in
• Lead in 加入 05:21
• Structure
• Structure 加入 10:49
• Vocabulary
• Vocabulary 加入 13:29
• Sentence patterns
• Sentence patterns 加入 10:27
• Difficult sentences
• Difficult sentences 加入 08:18
• Sentence translation
• Sentence translation 加入 11:10
• Unit 9 Economy&Management
• Lead-in
• Economy&Management-Lead-in 加入 07:45
• Economy&Management-Text Development
• 5 Economy&Management-Text Development 加入 07:45
• Economy&Management-Words&Expressions
• Economy&Management-Words&Expressions 加入 07:14
• Economy&Management-Sentence Translation