辛沛沛NO-BOOK 傻瓜机从零开始学英语--Unit 45 I don't know.(在线收听

 

Unit 45   I don't know.   

I know.   我知道了。

I know.   我知道了

I know.   我知道

I know.   我懂了。

I don't know.   我不知道。

I don't knw.   我不知道。

I don't know.   我也不知道。

I don't know.   我可不知道。

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