It’ well known that water i very important to man．We can’t live without water．The amount of water which i uitable to drink i falling quickly．But ome people don’t care about it．They wate a lot of water in their daily life．Even wore，they pour dirty water into river．They throw rubbih into river，too．Many river and lake eriouly polluted．Something mut be done to top the pollution．In thi way，We can live happily．If we don’t ave water，the lat drop water will be a teardrop．
众所周知，水是非常重要的人。我们的生活不能没有水。水可喝的数量急剧下降。但有些人不关心它。他们在日常生活中浪费很多水。更糟糕的是，他们把脏水倒入河流。他们扔垃圾到河流，很多河流和湖泊污染严重。必须做些什么来制止污染。这样，我们可以快乐地生活。如果我们不节约用水，最后一滴水将是一滴泪。