- 新概念英语第四册精讲：Lesson 23 Bird flight (0篇回复)
- 新概念英语第四册精讲：Lesson 14 The Butterfly Effect (0篇回复)
- 新概念英语第四册精讲：Lesson 22 Knowledge and progress (0篇回复)
- 新概念英语第四册精讲：Lesson 13 The search for oil (0篇回复)
- 新概念英语第四册精讲：Lesson 12 Banks and their customers (0篇回复)
- 新概念英语第四册精讲：Lesson 11 How to grow old (0篇回复)
- 新概念英语第四册精讲：Lesson 10 Silicon valley (0篇回复)
- 新概念英语第四册精讲：Lesson 8 Trading standards (0篇回复)
- 新概念英语第四册知识点精讲： Royal espionage (0篇回复)
- 新概念英语第四册知识点精讲：The modern city (0篇回复)
- 新概念英语第四册精讲：Lesson 7 Bats (0篇回复)
- 新概念英语第四册知识点精讲： Banks and their customers (0篇回复)
- 新概念英语第四册知识点精讲： Youth (0篇回复)
- 新概念英语第四册精讲：Lesson 6 The sporting spirit (0篇回复)
- 新概念英语第四册知识点精讲： The search for oil (0篇回复)
- 新概念英语第四册知识点精讲：On Telling the Truth (0篇回复)
- 新概念英语第四册精讲：Lesson 5 Youth (0篇回复)
- 新概念英语第四册知识点精讲：The Butterfly Effect (0篇回复)
- 新概念英语第四册知识点精讲： Finding fossil man (0篇回复)
- 新概念英语第四册精讲：Lesson 4 Seeing hands (0篇回复)