Water
The water in our lives is the most important.If there is no food,the week will die without water,three days will die.
Water is very precious,and most of the planet's water resources are polluted and destroyed.Therefore,we should cherish water resources,not waste.Water also can be used for our own entertainment,such as swimming,boating and so on.In short,the water is very important to all living organisms.
We must treasure the valuable water resources.
字数不知道行不行,多顶啊!谢啦!