All right, who are you and what are you doing in my office?

哎，你是谁，在我的办公室干什么呢？

《柯林斯英汉双解大词典》

You both need to know what you're doing, who's paying what into the joint account and how much you keep separately.

你们都需要知道自己在做什么，谁向联名账户支付了什么，以及你们各自有多少存款。

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"It's as if you're driving a stick shift," says Judith Hall, a psychologist at Northeastern University, "and if you start thinking about it too much, you can't remember what you're doing."

“这就好像你在驾驶手动挡汽车，”美国东北大学的心理学家朱迪丝·霍尔说，“而且如果你开始想得太多，你就不记得自己在做什么。”

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Tell us your resolutions and hopes for two thousand ten, and what you will be doing New Year's Eve.

VOA: special.2009.12.28

You've always got to be reinventing what you're doing based on the technology and what's going on.

必需得创新,根据技术和时下局势创新。

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And because, of course, we have this carbon here what you end up doing is adding a carbon to your molecule.

因为，当然，我们这里有一个碳,接下来需要做的就是在你的分子中再加上一个碳。

麻省理工公开课 - 化学原理课程节选

Do what you know and know what you are doing at all times.

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And again let us know what you think we're doing right and what you think we're doing wrong.

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Understand your lifestyle: who are you and what do you enjoy doing?

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