If we build an engine for a car or anything else, it almost always is going to have some key element that's operating in a cycle, otherwise it won't keep going, right.

如果我们为一辆汽车，或其他什么东西制造一台引擎,它总要有一些关键，要素来形成循环。

麻省理工公开课 - 热力学与动力学课程节选

I keep going round and round in circles and I don't see the hotel.

我不停地在绕圈，但我还是没有看到酒店。

How can I 实战 - SpeakingMax英语口语达人

Everybody sit down again but don't but don't put your--keep your books handy because this is going to be pretty aerobic.

大家都坐下,但不要放下书,拿在手上,因为你们将要做些有氧运动

耶鲁公开课 - 博弈论课程节选

That doesn't solve the problem we had before though Then I'm going to append it, and keep the last change for future use.

这样没有解决我们之前的问题,所以我要给它加上一个值，让上一次的变化能够用到未来的例子中。

麻省理工公开课 - 计算机科学及编程导论课程节选

Why didn't they keep right on going with G, H, I, J, K, L, M, N, O, P?

为什么他们不接着写下去呢,按照字母表

耶鲁公开课 - 聆听音乐课程节选

I said I wasn't going to keep saying that remark, and here I am saying it anyway.

我说过我不会再说这句话，但是我现在又说了。

耶鲁公开课 - 死亡课程节选