一年级英语上册Unit 4《My bag》
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《My bag》 A:Learn to say This is a book. This is a pencil box. This is a bag. This is a pencil. B:Look and learn book bag pencil pencil box C:Sing a song A pencil A pencil,a pencil,a pencil,pencil box. A pencil,a pencil,oh,in the pencil box. D:Play a game One,two,three. Put the book in the bag.
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自动(将会根据您的网速，自动调整清晰度)
标清(适合网速较慢，视频卡顿的用户)
高清(适合网速较快，视频无卡顿的用户)
超清(适合网速极快，追求高品质享受的用户)
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