know啥意思是什麼意思

I don't know what you're on about.

我不懂你在談什麼。

Well, what do you know? Look who's here!

唷，真想不到！你看誰來啦！

She of all people should know the answer to that.

在所有的`人中，唯有她最應知道那個問題的答案。

I don't know how you can say things like that.

真想不到你怎麼會說出這種話來。

She didn't know what life in a foreign country would be like.

她不知道外國的生活會是什麼樣。