Stay Hydrated

During cold winters, I use a heater to keep my room warm.
It hasn't rained for a long time, since November.
Everyone needs to drink some water.
Over half the human body is made up of it.
But exactly how much water do we need to stay healthy?
I think it's probably about two liters a day.
I drink more water when I'm in the office.

在寒冷的冬天，我用加热器保持房间温暖。
自从11月以来，已经很久没有下雨了。
每个人都需要喝一些水。
超过一半的人体是由水组成的。
但我们到底需要多少水才能保持健康呢？
我想大概是每天两升。
我在办公室会多喝水。