本产品是《新概念英语 3 录音练习手册》配套磁带4盘。1/4 A: Unit 1 Lesson 1 - Lesson 7 B: Unit Lesson 8 - Lesson 14 2/4 A: Unit 1 Lesson 15 - Unit 2 Lesson 21 B: Unit 2 Lesson 22 - Lesson 28 3/4 A: Unit 2 Lesson 29 - Lesson 36 B: Unit 2 Lesson 37 - Unit 3 Lesson 44 4/4 A: Unit 3 Lesson 45 - Lesson 52 B: Unit 3 Lesson 53 - Lesson 60.