上篇 Unit 1 The Pursuit of Dreams Unit 2 Freshman Year Unit 3 True Stories of Nazi Germany Unit 4 Meeting Statesmen Unit 5 The Water Problem Unit 6 Going Offline 下篇 Unit 1 Living Green Unit 2 Tales of True Love Unit 3 Friendship Unit 4 Studying Abroad Unit 5 Pioneers of Flight Unit 6 Maker Movement in China
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