That's cool.

　　很酷哦。

　　That's interesting.

　　很有意思哦。

　　How interesting.

　　真有意思哦。

　　【情景一】

　　A: My boyfriend is a rich lawyer. He just won a billion-dollar lawsuit.

　　我男朋友是个有钱的律师。他刚赢了一个十亿美元的官司。

　　B: Oh, that's cool. What was the lawsuit about?

　　哦，好酷哦。是什么样的官司？

　　【情景二】

　　A: One time I beat a Ferrari with my Toyota.

　　有一次我开我的丰田跑过了一辆法拉利。

　　B: That's interesting. You must be a good driver.

　　真有意思啊，你一定是个好司机。

　　2. 怀疑事情的准确程度

　　I'm not sure about that.

　　我不太确定。

　　I don't know about that.

　　我不太确定。

　　【情景三】

　　A: Did you know the U.S. is a trillion dollars in debt to China?

　　你知道美国欠中国一千亿美元吗？

　　B: I'm not sure about that. I don't think it's that much.

　　我不确定。我觉得没那么多。

　　I think you might be mistaken.

　　我觉得你可能说错了。

　　【情景四】

　　A: I'm telling you. Tina's gonna quit.

　　我告诉你，Tina辞职了。

　　B: I think you might be mistaken. She seems really happy here.

　　我觉得你可能弄错了。她在这干的挺开心的。