"Did you know him?"—"I did indeed."

“你认识他吗？”—“我确实认识他。”

《柯林斯英汉双解大词典》

You wouldn't know him.

你一定不认识他。

《柯林斯英汉双解大词典》

I don't know him—he's a perfect stranger.

我不认识他，他是百分之百的陌生人。

《牛津词典》

Some people who do not know him well think he is too firm and severe.

VOA: special.2010.05.02

Oh yeah, I know Hanson, but if I didn't know him, I wouldn't know any farmers.

好吧,我知道汉森,但我不认识他,我一个农民都不认识

耶鲁公开课 - 古希腊历史简介课程节选

I mean, I got to know him, that was how I first got to know him.

这就是我怎样结识他的。

写推荐书的人 - SpeakingMax英语口语达人

In fact, if you know him at the top of his game, it's closer to demoralizing.

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Not surprisingly, once you know him, the Hong Kong places he loves tend toward the classic.

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You might want to know him the way some of us in Massachusetts do.

CNN: Man from Massachusetts