It’s well known that water is very important to man．We can’t live without water．The amount of water which is suitable to drink is falling quickly．But some people don’t care about it．They waste a lot of water in their daily life．Even worse，they pour dirty water into rivers．They throw rubbish into rivers，too．Many rivers and lakes seriously polluted．Something must be done to stop the pollution．In this way，We can live happily．If we don’t save water，the last drop water will be a teardrop．
眾所周知，水是非常重要的人。我們的生活不能沒有水。水可喝的數(shù)量急劇下降。但有些人不關(guān)心它。他們?cè)谌粘Ｉ钪欣速M(fèi)很多水。更糟糕的是，他們把臟水倒入河流。他們?nèi)永胶恿?，很多河流和湖泊污染?yán)重。必須做些什么來制止污染。這樣，我們可以快樂地生活。如果我們不節(jié)約用水，最后一滴水將是一滴淚。