Lesson 27 | Ne bie chou yan le| anh dung hut thuoc nua

[postlink]http://clip4learn.blogspot.com/2011/02/lesson-27-ne-bie-chou-yan-le-anh-dung.html[/postlink]http://www.youtube.com/watch?v=IFtc-f5YVr0endofvid
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Lesson 27 | Ne bie chou yan le| anh dung hut thuoc nua
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