'I didn't do it!' she broke in.

“不是我干的！”她插嘴说。

《牛津词典》

I didn't do it—I've been fitted up!

这事不是我干的—我遭到诬陷了！

《牛津词典》

I didn't do all that work just for the fun of it.

我做这一切并不仅仅是为了好玩。

《牛津词典》

And I knowed I could pray now. But I didn't do it straight off, but laid the paper down and set there thinking -- thinking how good it was all this happened so, and how near I come to being lost and going to hell.

VOA: special.2010.03.21

So it was a little risky but safe in the end because I didn't do anything else with it.

所以它有点冒险但是最终是安全的,因为我没用它做其它的操作。

哈佛公开课 - 计算机科学课程节选

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

There was still something out there I didn't do that I still have to do.

WSJ: Foot healed, Blanka Vlasic will return at NY meet

If I didn't do it, it'd be somebody else's son or somebody else's brother.

NPR: A Soldier Talks About the Mission in Iraq and Why He Serves

You've just got to beat the guy you're playing against, and I didn't do that today.

CNN: Nike duo Woods and McIlroy humbled in the Arizona desert