I know nothing.

我什么也不知道。

youdao

The opinion was also whispered that my master was my father; but of the correctness of this opinion, I know nothing; the means of knowing was withheld from me.

也有人私下说，我的主人是我的父亲；但我不知道这个观点的正确性；我没有办法知道。

youdao

I know nothing about boxing, but I could see he was unfit, because he was puffing.

我对拳击一无所知，但我看得出他身体不行，因为他直喘粗气。

《柯林斯英汉双解大词典》

"I'm sorry to say." said Cleveland, "but the truth is, I know nothing about the tariff."

VOA: special.2010.05.20

This seems to be a statement of his alienation or disaffection from the concerns of his fellow Athenians. I know nothing about what you do or what you care about.

这似乎是他对雅典同胞,所关心之事务疏离,或不满的表述,我不知道你做啥。

耶鲁公开课 - 政治哲学导论课程节选

I assume that you know nothing, starting from ground zero here and build it up.

我假设你们什么都不知道,零起点,从头开始

耶鲁公开课 - 聆听音乐课程节选

For example, I know nothing about wine, so when I buy wine for a dinner party I determine the value solely on price.

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Let me say a final word about your son's condition -- again recognizing that I know nothing about him beyond what's in your question.

CNN: How can I help my despairing son?

At this point the report launches into what I think is statistics, and while I am pretty good at lies and damn lies, I know nothing at all about statistics.

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