我对他生意上的事一概不知道。

I knew nothing of his business dealings.

《牛津词典》

“是的，我知道那事。”凯利一边把消音器拧到手枪上一边说道。

"Yes, I know that," Kelly said, screwing the silencer onto the pistol.

《柯林斯英汉双解大词典》

当心脏监测器上的最后一次跳动逐渐停止时，我知道莱拉已经永远离开了我的生活。

As the last beats in the heart monitor trailed　off, I knew Lyra had left my life forever.

youdao

John Milton has made a mistake. He's made a literary mistake and, as I think all editors know, Spenser does not.

约翰·弥尔顿犯下了一个错误，他犯下了一个文学上的错误，而且我认为所有的编辑都知道，这个错误斯潘塞没犯过。

耶鲁公开课 - 弥尔顿课程节选

I chose English Literature because when I started off a university, I didn't know what it was I wanted to do.

我选英语文学是因为当我刚上大学的时候，我不知道自己到底想做什么。

为何选那门专业？ - SpeakingMax英语口语达人

The technical expression of that in philosophy is common knowledge, which I can never spell, so I'm going to wing it.

在哲学上叫做共同知识,我不知道拼写对不对,我看一下

耶鲁公开课 - 博弈论课程节选