点击加载更多

• Sentence translation 加入 13:58
• Unit 6 Engineering and society
• Lead in
• Lead in 加入 06:02
• Structure
• Structure 加入 10:07
• Vocabulary
• Vocabulary 加入 13:08
• Sentence patterns
• Sentence Patterns 加入 11:31
• Difficult sentences
• Difficult sentences 加入 06:22
• Sentence translation
• Sentence translation 加入 09:00
• Unit 7 History and personality
• Lead in
• Lead in 加入 07:52
• Structure
• Structure 加入 11:02
• Vocabulary
• Vocabulary 加入 07:39
• Sentence patterns
• Sentence patterns 加入 08:58
• Difficult sentences