The ragged, strained breathing becomes as smooth as a kitten's purr.

不规则的、紧张的呼吸变得平滑，像小猫的呼噜声那般安稳。

Interestingly, we still don't really know why cats purr.

有趣的是，我们仍然不知道猫为什么会发出呼噜声。

Crookshanks leapt up beside him and stepped onto his lap, purring.

克鲁克山跳到他身旁，趴到他膝上，满意地呜呜叫着。

Many professionals say that a cat's purrs serves the same function as a person's smile.

很多专业人士说，猫的呼噜声与人的微笑具有相同的功能。

How she purrs when you stroke her back!

抚摸它的后背, 它就会呼噜呼噜地叫, 好可爱！

It focuses on two different types of purr.

实验的重点是两种不同的咕噜声。

I was becoming used to the quiet purr.

我开始习惯这种安静的嗡嗡声了。

So, he does have various purrs, yes.

他的叫声是不一样的。

Co-operation is what makes teams purr.

想让团队安稳工作，就要合作。

I climbed on Leonardo-in-my-shape and stroked his cheek. He purred. Then Mom stroked me gently. I purred.

我爬上在我身体里的Leonardo，轻抚他的脸。他咕噜叫。然後妈温柔安抚我，我咕噜叫。