So about three billion years ago, bacteria evolved a defense mechanism to fight viral infection.

所以大约30亿年前，细菌进化出一种防御机制来对抗病毒感染。

Some sort of biological defense mechanism.

某种生物防御机制。

That defense mechanism is now better known as CRISPR.

这种防御机制现在更多被称为CRISPR。

Think of it like a defense mechanism for your mind.

把它看作是你的大脑的防御机制。

Yes. Back then, I uh, used humor as a defense mechanism.

对，那个时候我用幽默作为防御机制。

Luckily though, the stomach also has some defense mechanism in place.

但幸运的是，胃还有一些防御机制。

These can be divided into preformed or passive defense mechanisms and inducible or active systems.

这些可以分为预先防御机制和被动防御机制，以及可诱导或活跃机制。

Animals can deploy color as a defense mechanism in a couple of ways.

动物可通过多种方式将色彩变为防御机制。

The tannins are part of the defense mechanism that is essential to longevity.

“单宁”是防御机制的组成部分，也是长寿的重要因素。

When my parents got divorced, I started using humor as a defense mechanism.

我父母离婚后 我开始用幽默来自卫。

To learn more about defense mechanisms, let's turn to the experts – animals!

为了进一步了解“防御机制”，让我们向这方面的专家寻求帮助：动物！

Robin began to use comedy as a defense mechanism. It started with his mother.

罗宾开始用喜剧作为自己的防御机制，这源自他的母亲。

Scientists think that bioluminescence could be a defense mechanism to help them escape predators.

科学家认为生物发光可能是一种帮助它们逃避掠食者的防御机制。

Some esophageal defense mechanisms against acid reflux are the primary and secondary peristaltic waves.

一些抗酸反流的食管防御机制是初级和次级蠕动波。

However, a jelly population's true defense mechanism is in how quickly they can reproduce.

然而，水母族群真正的保护机制是它们的快速繁殖能力。

It is believed that the molecule emerged as a defense mechanism against invasive bacteria, plant pathogens and...

人们认为，这种分子的出现是一种防御入侵细菌、植物病原体和真菌的防御机制。

This defense mechanism relies on another property of surfactants — their ability to break the surface tension of water.

这种防御机制依赖于表面活性剂的另一种特性——打破水表面张力的能力。

Everybody else loses weight, she said. Somehow I got fat. The one-liners were a defense mechanism honed in childhood.

“其他人都在变瘦，”她说。“不知怎么的，我变胖了。”这些俏皮话是小时候磨练出来的防御机制。

People with CPTSD are more likely to avoid relationships and push people away as a defense mechanism than those with BPD.

与 BPD 患者相比，CPTSD 患者更有可能回避人际关系，将他人推开作为一种防御机制。

So pain is a really smart defense mechanism by our bodies to avoid things that might potentially injure the body permanently.

所以疼痛是我们身体的一种非常聪明的防御机制，它可以避免可能对身体造成永久伤害的事情。