At the same time, worrying thoughts appeared in my head like, "What do you think you are doing?"

与此同时，我的脑海里出现了忧虑，“你以为你在做什么？”

youdao

Tie them to the saddle-bow: very slack so that I can do what I like with my head.

将它们绑在鞍弓上：非常放松，这样我就可以用自己的头做自己喜欢的事情。

youdao

I shook my head helplessly, unsure of what to do or say.

我无助地摇摇头，不知道说些什么好，也不知道该怎么办。

youdao

Playing it in my head. Did I do enough, or did I not do enough?

VOA: special.2009.12.11

I write 1.0 times 1.6. Even that I can do in my head.

写下1。0*1。6，即使我可以在头脑中想象。

麻省理工公开课 - 固态化学导论课程节选

Well, what I always do in anything like this is, the first thing I do is, I run it on something where I can actually compute the answer in my head. So I get a sense of whether or not I'm doing the right thing.

好的，我常常在,这种问题中会做的是，我会做的第一件事是我,会先带入我可以心算的值来运行,因此我能够知道我是否做对了。

麻省理工公开课 - 计算机科学及编程导论课程节选

When I pass a sign I'll do math in my head to figure out exactly how many minutes it should take me to get there, just as an exercise to keep my mind working.

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"If they still had concerns and I still believe it is right to go ahead then I would do it, and on my head be it, " he said.

BBC: Gove challenged over exam changes by watchdog Ofqual

When I see PaidContent or Blog XYZ telling Marissa Mayer what she needs to do to turn around Yahoo, I shake my head.

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