出汗是很好的降温系统。但是,如果你在天热的时候出了很多汗,你就可能流失过多的水分。这时,你就需要通过大量喝水来补充体内水分,不然你就会脱水。
Why does sweat smell? Sweat by itself doesn't smell at all. It's the bacteria that live on your skin that mix with the sweat and give it a stinky smell. And when a person reaches puberty, special hormones affect the glands in the armpits — these glands make sweat that can really smell.
那么,汗水为什么会有味道呢?汗水本身是没有味道的。但皮肤中的细菌和汗水结合起来就会产生一种臭味。当人到了青春期之后,就会在腋窝的汗腺中产生一种特殊的激素,使得汗水闻起来有种汗臭味。
词汇点津:
sweat glands 汗腺
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