I don't know at all if she comes.

我一点儿都不知道她来不来。

youdao

I don't know at all...... however, listen to the personality that you say so, also be really like to plant Chen.

我一点都不知道……不过，听你这么说，还真像植辰的性格。

youdao

I have never made his acquaintance.; I don't know him at all.

我与他素昧平生。

《新英汉大辞典》

I don't think so. They are strangers. They don't know him at all."

VOA: standard.2010.03.28

Well, I don't know. It seems to me that literary influence is not at all unlike sort of speaking or writing in the wake of a founder of discursivity, but we can let that pass.

我不知道，我觉得,文学的影响力和演讲和写作的影响力还是有相似之处的,尤其是在散漫性被发现之后，但是我们可以不谈这个。

耶鲁公开课 - 文学理论导论课程节选

I don't know if you can see those colors much at all, sorry about that.

我不太能确定你们是否能看清,这些颜色,不好意思

耶鲁公开课 - 美国内战与重建课程节选

"I don't know the kid at all, " Tortorella said.

WSJ: NHL Playoffs: New York Rangers Top New Jersey Devils With Rope-A-Dope Act

Everyone I was still with from Morgan Stanley at that time split up and I don't know if they all survived.

BBC: The survivors' stories

How he survived at all, I don't know.

BBC: Cat found six days after fall from Gloucestershire viaduct