房间里的人在打哈欠，或者在替自己搔痒。
The occupants of the rooms are yawning, or else scratching themselves.
在冬天，当室外平均温度21度时，45%的人看到别人打呵欠的图片时自己也会打哈欠。
In the winter, when outdoor temperatures averaged 21 degrees, 45 per cent of people responded to the images by yawning themselves.
另一方面，发烧的人打哈欠的时间比身体正常的人少，而控制不住地重复打哈欠可能是糖尿病或中风的症状。
On the other hand, someone running a fever indulges in such ACTS less than normal, while uncontrollable repeats may be a symptom of diabetes or a stroke.
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