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课时1:Lesson 1 Preview
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免费
课时2:Lesson 1 Video Class
30:04
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课时3:Lesson 1 Quiz
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课时4:Lesson 2 Preview
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课时5:Lesson 2 Video Class
31:11
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课时6:Lesson 2 Quiz
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课时7:Lesson 3 Preview
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课时8:Lesson 3 Video Class
25:01
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课时9:Lesson 3 Quiz
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课时10:Lesson 4 Preview
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课时11:Lesson 4 Video Class
24:09
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课时12:Lesson 4 Quiz
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课时13:Lesson 5 Preview
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课时14:Lesson 5 Video Class
15:37
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课时15:Lesson 5 Quiz
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课时16:Lesson 6 Preview
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课时17:Lesson 6 Video Class
19:42
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课时18:Lesson 6 Quiz
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课时19:Lesson 7 Preview
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课时20:Lesson 7 Video Class
24:29
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课时21:Lesson 7 Quiz
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课时22:Lesson 8 Preview
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课时23:Lesson 8 Video Class
17:48
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课时24:Lesson 8 Quiz
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课时25:Lesson 9 Preview
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课时26:Lesson 9 Video Class
15:25
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课时27:Lesson 9 Quiz
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课时28:Lesson 10 Preview
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课时29:Lesson 10 Video Class
14:30
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课时30:Lesson 10 Quiz