译林版3年级英语下册（三起）同步讲解上课视频

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目录
Unit 1 In class
Unit 2 In the library
Unit 3 Is this your pencil?
Unit 4 Where’s the bird?
Project 1 My puppy
Unit 5 How old are you?
Unit 6 What time is it?
Unit 7 On the farm
Unit 8 We’re twins!
Project 2 A magic book