don't know

基本解釋

I don't know what lurks in his mind.
我不知道他心里潛藏著什么。
I don't know how I aced in, I was lucky enough.
我不知道這好事怎么讓我給碰上了，我夠幸運(yùn)的。
I don't know why such new gifted people have sprung up in my life.
我不知道怎么回事，在我的周圍一下子涌現(xiàn)了那么多有才華的新人。

But we certainly didn't have goals. I don't know if we had ever heard of Grammys at that point.
if we can't think what system it belongs to, that's tantamount to saying we really don't know what it is.
我們就不知道它從屬于哪個(gè)符號(hào)系統(tǒng)，我們就不能認(rèn)識(shí)它了。
耶魯公開課 - 文學(xué)理論導(dǎo)論課程節(jié)選
So they've got these superhighways which is, I don't know if you've seen them, they are marked on in blue.
所以，他們修了這些高速路，我不知道你見過沒有，他們被標(biāo)成藍(lán)色了。
倫敦的藍(lán)色自行車 - SpeakingMax英語(yǔ)口語(yǔ)達(dá)人

For folks who don't know, we have this sort of dual conversation going on.
NPR: Sunshine State Smiles on McCain

a person who has not reached a definite opinion on a subject, esp as a response to a questionnaire