"I know what I did was right," he said.

“我认为我的所作所为完全正确，”他说。

youdao

I know what I did wrong, so stop getting on my back.

我已经知道我错了，不要再找我麻烦。

youdao

I know what I did was wrong and now I have to deal with it.

我知道自己之前做错了，所以现在我必须应对这个结果。

youdao

"I can't think of a person that I know of in the world that used their celebrity status for a greater good than what Manute Bol did.

VOA: special.2010.07.05

I began with their ideas of Japan and what did they know, because I knew that they knew very little.

我先让他们写了对日本的看法,和了解多少，因为我知道他们的知识很有限。

麻省理工公开课 - 媒体、教育、市场课程节选

Well, I actually did not know what I wanted to do coming into Berkeley.

嗯，实际上，来伯克利的时候，我并不知道自己想做什么。

伯克利的课程计划 - SpeakingMax英语口语达人

If I had not done this, I would never know what I did not know.

FORBES: To Continue Growing, Quit The Big Job

And again, I did what I know how, and kept pushing.

FORBES: Live Updates: What Is Election Day Like For A National Congressional Campaign Manager?

In deference to Arianna, I did what I know best: I turned to technology to help me sleep rather than push for a Luddistic, tech-free lifestyle.

WSJ: High-Tech Sleep Aids: The Tech to Get Some Z's