James Stock is on the committee that dates the rises and falls in the business cycle for the National Bureau of Economic Research.

VOA: special.2010.09.24

So now let's go around the cycle and just compare notes on what happens to the thermodynamic quantities as we do that.

现在让我们推导一下这个循环,比较一下这个过程中,热力学性质的变化。

麻省理工公开课 - 热力学与动力学课程节选

Is it safe to cycle on the streets of London?

在伦敦的街上骑自行车安全吗？

我使用自行车 - SpeakingMax英语口语达人

The life cycle of the plant depends on the amount of daylight.

VOA: special.2010.06.29

Before I move on, I'm just going to put on the board another cycle, and I'm going to urge you to work through that on your own.

在我继续之前，我要在黑板上,画另一个循环，我希望你们,能自己去推导它，它已经被详尽地推导过了。

麻省理工公开课 - 热力学与动力学课程节选

"There is a need to break the on-again-off-again cycle of our military-to-military relationship,".

VOA: standard.2009.10.27

Your choice will depend on where you are in the menstrual cycle.

你的选择将取决于,月经周期时你在哪里。

耶鲁公开课 - 心理学导论课程节选

He called on a new generation of Africans to build democracy, create opportunity,fight corruption, and end the long cycle of strongman rule and conflict on the continent.

VOA: standard.2009.07.11

They start on Thursday and go through a Monday cycle.

从周四开始到下周一是一个循环

耶鲁公开课 - 聆听音乐课程节选

So you know your cycle, you know, you could have a whole complicated sequence on a p v diagram of steps going back.

因此，对某一的循环过程，可以在pV图上画出,一系列很复杂的小步骤。

麻省理工公开课 - 热力学与动力学课程节选