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1·She managed to stifle a yawn.

她忍住了呵欠。《牛津词典》

2·He gave an ostentatious yawn.

他张扬地打了个哈欠。《牛津词典》

3·She makes no attempt to stifle a yawn.

她并未试图忍住一个哈欠。《柯林斯英汉双解大词典》

4·He faked a yawn.

他装着打了一个呵欠。《牛津词典》

5·Her yawn was a Pavlovian response to my yawn.

她打哈欠是对我打哈欠的条件反射。《牛津词典》

6·She stretched her arms out and gave a great yawn.

她伸开手臂，打了个大呵欠。《柯林斯英汉双解大词典》

7·She stifled another yawn and tried hard to look interested.

她又忍住了哈欠，竭力显出感兴趣的样子。《牛津词典》

8·Rosanna stifled a huge yawn.

罗莎娜强忍住没打哈欠。

9·They start to yawn, and we start to yawn.

他们开始打哈欠，我们也开始打哈欠。

10·At last, with a sigh and a yawn, he gave it up.

最后，他叹了口气，打了个呵欠，就放弃了。

打哈欠

1·Rosanna stifled a huge yawn.

罗莎娜强忍住没打哈欠。

2·A smile, frown, raised an eyebrow, yawn, and sneer all convey information.

微笑、皱眉、挑眉、打哈欠和冷笑都传达信息。

3·That may be a hint that yawn evolved as a social cue—time for us all to go to bed.

也许这是打哈欠进化为社交线索的一种暗示——“到我们大家睡觉的时间了”。

4·Before you yawn, rub your eyes and hit the snooze button, consider the consequences of living in a nation of sleepheads.

在你打哈欠、揉眼睛、准备打盹之前，想一想生活在一个瞌睡虫遍地的国家是怎样的一个情况吧。

5·This accords with anecdotal evidence that people often yawn in situations where they are neither tired nor bored, but are preparing for impending mental and physical activity.

这与坊间流传的证据相符，即人们常会在既不累也不无聊的情况下打哈欠，只是为即将到来的精神和身体活动做准备。

哈欠

1·She makes no attempt to stifle a yawn.

她并未试图忍住一个哈欠。《柯林斯英汉双解大词典》

2·She stifled another yawn and tried hard to look interested.

她又忍住了哈欠，竭力显出感兴趣的样子。《牛津词典》

3·In other words, if there are no surprises, it's just a yawn.

换言之，如果没有令人惊讶之处，它只不过是个哈欠。

4·A smile, frown, raised eyebrow, yawn, and sneer all convey information.

微笑，蹙额，提眉，哈欠和冷笑都传递着信息。

5·A lioness lets out a mighty yawn to shake away the sleep and be ready for the wildebeests which were headed in the direction of the pride.

一头母狮打了一个有力的哈欠，它的睡眠被催醒了，准备面对着骄傲地朝着它方向的角马。

呵欠

1·She managed to stifle a yawn.

她忍住了呵欠。《牛津词典》

2·He faked a yawn.

他装着打了一个呵欠。《牛津词典》

3·She stretched her arms out and gave a great yawn.

她伸开手臂，打了个大呵欠。《柯林斯英汉双解大词典》

4·At last, with a sigh and a yawn, he gave it up.

最后，他叹了口气，打了个呵欠，就放弃了。

5·Have you ever yawned in front of someone, only to have them yawn right back?

你有没有在别人面前打呵欠，结果对方也打呵欠？

打呵欠

1·That is a long time, and he has to yawn himself, he gets so tired.

那是一段很漫长的时间，他不得不打呵欠，他太累了。

2·I yawn and stretch.

我打呵欠伸懒腰。

3·Cats yawn because they realize that there's nothing to do.

猫打呵欠因为它们认识到无事可做。

4·Your breathing slows, your heart slows, and you may start to yawn... all of these things are preparations the body is making for sleep, so that it can get to work on repairs as soon as possible.

你呼吸减慢，心跳放缓，开始打呵欠，所有这些都是身体为睡眠做准备，这样睡眠的时候身体才会尽快地得到休息恢复。

5·Gru: Three little kittens started to yawn...

格鲁：三只小猫开始打呵欠。