视频课程目录：
Unit 1 We laughed into tears!
Unit 2 I saw a terrible movie
Unit 3 Have you ever done a part-time job?
Unit 4 I've tried all the means of transport
Unit 5 It's time to change
Unit 6 Tell me when the pain started
Unit 7 So much to do before we travel!
Unit 8 If you want to talk, you can go online
Unit 9 Everything is made in China!
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