Studies of both animals and humans have shown that sex hormones somehow affect the stress response, causing females under stress to produce more of the trigger chemicals than do males under the same conditions.

对于动物和人类研究都显示出性激素会在某程度去影响面对压力，导致在同样条件下，女性生更多致病化学物质。

The blue hue is caused by chemical reactions in plankton which produced the blue light.

蓝色荧光是由浮游生物生化学生。

The information would come very slowly, as it might chance to fall from his thoughts.

这些信息都是偶然从他中慢慢得到。

But it's also produced in nuclear reactions here on Earth, by bombs or nuclear reactors.

但地球上炸弹或核堆生核也能生同位素铁-60。

Moody seemed totally indifferent to his less-than-warm welcome.

穆迪似乎对大家冷淡无动于衷。

These prompt a wide range of responses.

由此而来泛。

22. What was the man's reaction to the woman's threat?

问题22. 对于女人威胁，男人是什么？

When it was unveiled at the Paris Expo, the public reaction was mixed.

当它在巴黎世博会上亮相时，公众褒贬不一。

Are these doomsayers overreacting, or is their charge legitimate?

是这些杞人忧天人过度，还是他们指控确实有道理呢？

Victims of the flood blame the tragedy on the government's response or lack thereof.

遭受洪水灾民将这些归咎于政府不当或缺乏作为。

But they aren't known to raise a ruckus in response to birds of prey.

但人们不知道它们对猛禽会引起骚乱。

Playing dead is an involuntary reaction to a threat.

装死是动物们在面对威胁时，身体一不自主行为。

We took it into the scanner to see how brains respond when you hear laughter.

我们使用扫描仪来观察了大脑在你听到笑声时。

But Russian authorities have not responded favorably.

不过俄罗斯当局并不积极。

You look upon your boy as though instinctively you guessed it.

你看了一眼你孩子，你本能似乎不错。

" He never regarded such behavior as a rational response to bondage, " Chernow noted.

“他从未将这行为视为对奴役合理。”

That's clearly the response that government policymakers are banking on.

显然，这是政府中政策制定者们希望。

Yeah, the reactions are nothing short of jubilation.

是，他们简直可以用欢呼雀跃来形容。

Turns out that regardless of evolutionary lineage, the animals react in a similar way to life among humans: they lose their antipredator traits. That pattern is especially pronounced for herbivores and for social species.

事实证明，不管进化谱系如何，这些动物对人类生活是相似: 它们失去了捕食者特征。 这模式在食草动物和群居物中尤为明显。

Reading is pleasure of the mind, which means that it is a little like a sport: your eagerness and knowledge and quickness make you a good reader.

读书是一思维享受, 也就是说有点像体育运动。善于读书人需要强烈求知欲、丰富知识和敏捷。