辛沛沛NO-BOOK 傻瓜机口语极短句 Lesson 156 I don't know.（在线收听）

Lesson 156 I don't know.

1.I don't know.我不知道。

2.I do know.这确实知道。

3.You know well enough.你心里很明白。

4.I know him very well.我很了解他。

5.You never know.事情很难说。