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yawn(yawn怎么读)

yawn(yawn怎么读)

‘YAWN一族’?是什么意思?

有这样一个群体,他们年轻、富有、健康,但他们却极少开车,消费也不多,一切都以不给地球造成更多压力为宗旨。这就是注重环保的Yawn一族。

yawn怎么读

yawn 英[j?:n] 美[j?n]

vi. 打呵欠;张裂;<文>张口

n. 呵欠;聊或事;裂口

第三称单数:yawns;词:yawned;名词复数:yawns;现词:yaw...

[例句]A yawn is more contagious than any of these.

打哈欠比任何些状况都更易传染

关于开头是what?is?a?yawn?and?why?do?people?yawn?英语短文

When we yawn, we inhale air, and stretch our eardrums, and that is why our ears 'pop' when we yawn. There is a very common misconception about yawning, and that is people yawn when they need more air. But according to research studies, this is not true. Take excercising for an example. When we excerscie, we naturally need to inhale more oxygen, however, we do not yawn more during excercise.

A most likely explanation for why one yawns, is because one needs to cool off one's brain. Our brains require very specific temperatures to operate well, and when we are feeling tired exhausted, our brain temperatures increase, triggering an instict to yawn, and cool off the brain. The intake of air cools the facial blood, hence helping to cool off our brain too.

不知道你需要多长的,先写到这里,需要的话,欢迎追问! :)

解释yawn的意思

yawn [j?:n] n. 哈欠;裂口

vi. 打呵欠;裂开

vt. 张开;打著呵欠说

例句:

She yawned during his lecture.

她在他的课上不停地打呵欠。

He smothered a yawn behind his hand.

他用手挡住嘴遮掩自己打哈欠。

His speech made me yawn.

他的演讲令我打哈欠。

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