It is years since I have seen anyone yawning.

好些来我没有看见过任何人打哈欠。

Yawns, to me, are objects of curiosity.

对我来说，打哈欠倒是新奇的事。

The rat yawned. He straightened his whiskers.

老鼠打哈欠。它拉拉胡子。

Soon he was able to scratch and yawn simultaneously.

很快，它就能一边抓挠一边打哈欠了。

Another sure sign of this attachment is a yawn.

亲密关系的另一个明显表征是打哈欠。

But for now (yawn) can I crash on your couch. I'm beat!

现在（打哈欠）我能在你的沙发上休息一下吗？我累坏了！

As he yawned, he opened a mouth as big as an oven.

他一打哈欠，就张大他像炉口似的嘴巴。

Now, friends, did you yawn just now?

现在，朋友们，刚才你们打哈欠了吗？

Sometimes when you see someone else yawn, you will yawn by yourself as well.

有时看到别人打哈欠，你自己也会跟着打哈欠。

For example, you might yawn loudly during a long meeting.

例如，你可能在一场冗长的会议中大声打哈欠。

Yeah, it's when you open your mouth wide and take some air in and slowly out.

是的，打哈欠的时候我们会张大嘴巴，吸进空气，然后慢慢的呼出来。

Great yawn, Finn! A yawn, of course, is that typical reaction of someone who is bored.

好大一个哈欠啊，菲恩！没错，打哈欠可是人们无聊的一个典型表现。

So, why did you just yawn?

那你刚刚为什么打哈欠？

What biological function does yawning have?

打哈欠有什么生物学功能？

Because it's such a well-worn part of my story now. It's a big yawn to hear.

我是怎么写出书来的故事已经是老生常谈了，再听人们要打哈欠了。

Scientists have proposed many theories for why we catch yawns.

科学家们提出了许多理论来解释为什么我们会打哈欠。

Contagious yawning also occurs in animals, but it doesn't necessarily work the same way as in people.

传染性打哈欠也发生在动物身上，它不一定和人类一样有效。

I can yawn. It's 2: 30 in the morning.

我只是在打哈欠 这都早上2点半了。

We yawn to take in more oxygen.

我们打哈欠是为了吸入更多氧气。

Catching a yawn shows you're attuned to a person's emotions.

打哈欠表明你能适应一个人的情绪。