This cycle repeats itself ad infinitum.

这个周期一直循环往复。

《柯林斯英汉双解大词典》

Understanding this cycle is important, not only because it sustains life on Earth, but also because it is bound up with the rate of global warming.

理解这种循环很重要，不仅因为碳循环维持地球上的生命，而且因为它对于全球变暖的速度有密切关系。

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How can you get out of this cycle?

如何才能跳出这个循环？

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The total energy reaching Earth from the sun rises and falls by just one tenth of one percent across this solar cycle.

VOA: special.2009.09.29

If you repeatedly go through this cycle of denaturing, synthesizing, denaturing, synthesizing you'll get many, many copies of DNA.

如果你不断重复这个变性-复制,变性-复制的循环过程,你就会得到很多很多的DNA复制产物

耶鲁公开课 - 生物医学工程探索课程节选

So we're going to go through a thermodynamic cycle, and here's what I want to calculate when we do this.

那么我们要推导,一个热力学循环,这是这个过程中我要计算的东西。

麻省理工公开课 - 热力学与动力学课程节选

As a money coach, I teach my clients a lot of skills to escape this cycle.

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However, poisons produced by bacteria can interfere with the communication process that regulates this cycle.

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Studies prove that this cycle ends up in you failing even worse the next time around.

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