So in that 500 million years, they survived multiple natural cycles of warming, and multiple natural cycles of cooling.

所以在这 5 亿年里，它们经历了多次自然变暖、自然降温周期。

It really keeps you connected to the natural cycle.

它让你与自然循环保持联系。

It's hard to watch these predations, but death is a crucial part of the natural cycle.

这样的捕食画面让人心酸，但生死轮回是大自然的一种循环。

About the past million years, massive ice sheets advanced and retreated across the Northern Hemisphere during natural cycles of climate change.

大约在过去的一百万年里，在气候变化的自然循环中，北半球的巨大冰盖进退。

Shelley depicts birth as both creative and destructive, and the monster becomes a disfigured mirror of the natural cycle of life.

雪莱认为生产同时具有 生机及毁灭性，怪物则真实地反映了生命的残破面。

Circadian rhythms are the hormonal cycles that keep our body clock in tune with the natural cycle of night and day.

昼夜节律是使我们的生物钟与昼夜自然周期保持一致的荷尔蒙循环。

So instead, we use arguments like, " It's just a natural cycle."

因此，我们使用诸如“这只是一个自然循环” 之类的论点。

And while that ocean current breakdown was part of natural climate cycles, what's happening today is thanks to us, and it's happening even faster.

虽然洋流崩溃是自然气候循环的一部分，但今天发生的事情原因在于我们，而且发生得更快。

When people eat this fish, we interrupt this natural cycle, and the nematode worm larvae can take up residence inside our throat, stomach, or intestinal lining instead.

但是我们吃鱼时，我们打断了这种自然循环，接下来线虫类蠕虫的幼体可以定居在我们喉部或者胃肠内壁。

But that is part of a natural cycle: The amount of carbon released into the air is about equal to the carbon oceans and plants take in.

释放到大气中的碳量与海洋和植物吸收的量几乎相等。

Historians have suggested that the tale of Sisyphus may stem from ancient myths about the rising and setting sun, or other natural cycles.

历史学家认为，西西弗斯的故事可能源于关于日出日落或其他自然周期的古代神话。

Your goal in growing organically should be good soil health, biodiversity, and working within the natural cycles of life, instead of against them.

有机种植的目标应该是良好的土壤健康、生物多样性，并在生命的自然循环中工作，而不是反对它们。

While other ice shelves on the Antarctic Peninsula have been impacted by climate change, Vaughan thinks this might be part of a natural cycle.

虽然南极半岛上的其他冰架已受到气候变化的影响，但沃恩认为这可能是自然循环的一部分。

Methane from cows and other animals comes from a natural cycle and is much different from the carbon dioxide coming out of cars or airplanes which came from fossil fuels.

奶牛和其他动物的甲烷来自自然循环，与来自化石燃料的汽车或飞机的二氧化碳有很大不同。

El Nino has arrived Operating on top of this background of ocean warming is a natural climate cycle called the El Nino-Southern Oscillation, or ENSO.

厄尔尼诺现象已经到来 在海洋变暖的背景下运作的是一种自然气候循环，称为厄尔尼诺-南方涛动（ENSO）。

This is all part of the natural cycle of the Universe, and in fact we wouldn't be here at all if it weren't for the way stars live and die.

这都是宇宙自然循环的一部分，事实上，如果不是因为恒星的生存和死亡，我们根本不会存在。

Carbon works in a natural cycle, present in all living things: in the soil, in the oceans, in the atmosphere and in rocks deep underground.

碳在自然循环中运作，存在于所有生物中：在土壤、海洋、大气和地下深处的岩石中。

Because, like, she has a natural cycle so at six in the morning, bam, you start to hear her wagging her tail or scratching, or trying to get attention. Time to get up.

她有自己的自然周期，所以早上六点你会听到砰的一声，然后你会听到她摇尾巴或抓东西来吸引注意力。那就是该起床的时间了。

Based on the repeated natural cycle seen in the climate record, we’d normally expect the Earth to continue a trend of gradual cooling for the next few thousand years.

根据气候记录中反复出现的自然循环，我们通常预计地球将在未来几千年内继续保持逐渐降温的趋势。

Actually, a number of them that have come on our sessions have found that it's been very helpful to go into the forest and see the natural cycle of life.

事实上，参加我们课程的许多人发现，走进森林并了解生命的自然循环非常有帮助。