This is what we mean by complete the cycle.

这就是我们所说的完成循环的意义。

There is a complete energy cycle of the plant.

植物有一套完整的的能量循环。

It is completing a full sleep cycle including REM sleep.

它包含一个完整的睡眠周期，包括快速眼动期睡眠。

But there is a microorganism called Toxoplasma that needs both cats and rodents to complete its life cycle.

有一种寄生虫叫弓形虫牠需要猫和老鼠来繁殖。

Over eight hours, the average person experiences four to six complete sleep cycles, which last approximately 90 minutes each.

八小时内正常人会经历四到六个完整的睡眠周期，每个周期大概持续 90 分钟。

NASA says the moon takes 27.3 days to orbit Earth, but it takes 29.5 days to complete a full moon cycle.

NASA表示，月球绕地球一周需要27.3天，但完成一个满月周期需要29.5天。

We had completed one full cycle of the seasons.

我们已经完成了一个完整的季节循环。

It was fulfilling its own destiny, trying to complete its own life cycle.

它在完成自己的命运， 试图完成自己的生命周期。

However, a sunflower completes its life cycle in only a few months.

然而，向日葵只需几个月即可完成其生命周期。

Completing the Cycle: Decomposers But what happens when an organism dies?

完成循环：分解者但是当有机体死亡时会发生什么？

This decomposition process completes the energy cycle in an ecosystem, illustrating the intricate connection between all life forms.

这种分解过程完成了生态系统中的能量循环，说明了所有生命形式之间错综复杂的联系。

The parasite that causes malaria, though, can only complete its life cycle in normal, round red blood cells.

然而，导致疟疾的寄生虫只能在正常的圆形红细胞中完成其生命周期。

Some plants can live for hundreds of years, while others complete their life cycle in less than a year.

有些植物可以存活数百年，而另一些植物则在不到一年的时间内完成其生命周期。

This means that over the same amount of time, a high frequency wave will complete more cycles than a low frequency one.

这意味着在相同的时间内，高频波将比低频波完成更多的周期。

These parasites need two hosts to complete their life cycle: mosquitoes and some vertebrate, human being the one we’re most concerned with.

这些寄生虫需要两个宿主来完成它们的生命周期：蚊子和一些脊椎动物，人类是我们最关心的。

Looking at this sine wave, the frequency is defined as how many wavelengths, or complete cycles, pass a specific point in one second.

查看这个正弦波，频率定义为一秒钟内有多少波长或完整周期通过特定点。

If the mouse gets eaten by a cat, the tissue cysts become active and release offspring that mate to form new oocysts, completing the cycle.

如果老鼠被猫吃掉，组织囊肿就会变得活跃，并释放出交配形成新卵囊的后代，从而完成这个循环。

In 1639, the Italian astronomer Giovanni Zupi used a telescope to observe Mercury, and he discovered it undergoes a complete cycle of phases over time, just like the Moon does.

1639年，意大利天文学家乔瓦尼·祖比用望远镜观察到了水星，他发现它和月球一样，会经历一个完整的相位周期。

Strangest of all, they're actually attracted to feline urine, which probably makes them more likely to cross paths with a cat and help the parasite complete its life cycle.

最奇怪的是，它们实际上被猫尿所吸引，这可能使它们更有可能与猫相遇并帮助寄生虫完成其生命周期。

In an ideal case, pipelining lets you complete one instruction every single clock cycle, but then superscalar processors came along which can execute more than one instruction per clock cycle.

在理想情况下，流水线让您可以在每个时钟周期完成一条指令，但后来出现了超标量处理器，它可以在每个时钟周期执行多条指令。