你可以给一个因饥饿而打哈欠的可怜孩子一个便士吗?
Will you be kind enough to give a penny to a poor boy who is yawning from hunger?
很多实验证据证实了打哈欠的另一个不同的功能,它能让我们做好准备,改变活动状态。
The empirical evidence, such as it is, suggests an altogether different function for yawning—namely, that yawning prepares us for a change in activity level.
不幸的是,少数针对打哈欠的科学调查未能发现人们打哈欠的频率与他们睡觉时长和疲劳程度之间有任何联系。
Unfortunately, the few scientific investigations of yawning have failed to find any connection between how often someone yawns and how much sleep they have had or how tired they are.
Here is where the guy yawned.
这是那个东西打哈欠的地方。
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