谢谢，下了，好详尽

真的很好，我认真学习了，谢谢。

向你学习,谢谢分享

下载了，谢谢！正好拿来上课

a nice plan for the lesson, i learned a lot from it, thanks a lot.

thank you very much

真的很好，谢谢，后面几课时呢

下来看看...

不错 Thank you very much

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