英德
有道
百度
谷歌
图片
维基
百科
打呵欠的
yawning
yawny
yawny
- 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. - 主持这项研究的普林斯顿大学的科学家解释说，夏季打呵欠的好处不如冬季，因为夏季打呵欠时吸入的空气比人体温度还高。
There would be less benefit from yawning in summer because the air people breathed in would have been warmer than their bodies, Princeton University scientists said. - 科学家研究发现，当人的大脑开始出现过热时，打呵欠的动作就充当天然的“自动调温器”，让清凉的空气进入大脑，使大脑温度恢复到健康水平。
When the head begins to heat up, yawning acts as a natural "thermostat" by allowing cool air to rush in and bring the brain back down to a healthy temperature, research suggests.
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中国词汇量第二的英语词典
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