Water is indispensible to life. All living things on the earth have in common is that they all depend on water as a source of life. 字数限制发不了，需要的话联系我，把剩下的内容发给你。...
We all have to learn how to stop wasting our precious water. One of the first steps we should take is to develop ways of reusing it.For us, the systems are as important as the sp...
As we know,water is becoming less and less and we are facing the lack of water.So,to save water is of great importance.First,we should try to use as less water as possible.Second,w...
