辛沛沛NO-BOOK 傻瓜机从零开始学英语--Unit 78 I understand.（在线收听）

Unit 78   I understand.   

I understand.   我懂了。

I understand.   我理解。

I understand.   我明白。

I understand.   我理解。

I don't understand.   我不明白。

I don't understand.   我不懂。

I don't understand you.   你怎么回事？

I don't understand you at all.   我一点都不明白。