别担心，我知道我在做什么。

Don't worry about me. I know what I'm doing.

youdao

放心吧，我知道我在做什么，可以吗？

Trust that I know what I am doing, can you?

youdao

当我离开阿根廷时候我知道我在做什么。

I knew what I was doing when I left Argentina.

youdao

My management doesn't ask me what I'm doing in here, all right? They don't know.

我的管理部门没有问我在课堂上做什么，他们根本不知道。

麻省理工公开课 - 固态化学导论课程节选

I think she knows exactly what she's doing and

我觉得她完全知道她在做什么，

帕丽斯·希尔顿 - SpeakingMax英语口语达人

OK? Because what am I doing? It's called bubble sort because it's literally bubbling along, right?

明白了么？你要知道我在做什么,冒泡排序真的就像冒泡，对么？

麻省理工公开课 - 计算机科学及编程导论课程节选