相信很多小朋友从电视里都学到过“海水不能喝”这个常识，一般大人的解释都只是说海水太咸了。I believe that many children have learned the common sense that "the sea water can't be drunk" from the TV. Most adults only say that the sea water is too salty.Can't sea water really be drunk?其实准确的说法应该是，遇到海难后在海上漂流时不能用海水解渴，而不是海水绝对一点也不能喝。In fact, the exact statement should be that when you drift on the sea after a shipwreck, you can't quench your thirst with sea water, but that not means you can't drink seawater at all.因为人体肾脏排泄盐的功能非常有限，一般排泄盐的浓度不会超过2%，普通海水的盐浓度大约在3.5%左右，这就导致了喝海水不但起不到补充水的作用，反而会造成人体脱水。Because excreting salt is not easy for kidney, the concentration of salt excreted by human kidney is not more than 2%, but the salt concentration of ordinary sea water is about 3.5%. This leads to drinking sea water not only bad for supplying water to human body, but also cause dehydration of human body.
另外，喝过海水的人都知道，海水有苦又咸还有很重的腥味，你绝对不会喜欢喝。而且海水成分太复杂，水质很差。所以一般都绝对不建议长期喝海水。In addition, people who have drunk the sea water known that it is bitter, salty and has a strong fishy smell. You will never like it. The composition of sea water is complex, water quality is pretty poor. Therefore, it is absolutely not recommended to drink seawater for a long time.Is there any way to drink sea water? Of course.I'll let you know next time!
