水很重要我们需要保护它，节约它

Water is very important. It is the source of life. Everything in the world can’t live without water. The proportion of water and a person’s weight is about 70%. People can live without eating food for three days, but they will be very close to death if they don’t drink water for three days. The same goes for other creature. What’s worse, without water, everything will be stop. We can’t have power, and the world will be in the darkness. The parts of cell phone can’t be made. Then we have no way to connect with others. In a word, water is pretty significant. We need to protect it and save it.  
水非常重要。它是生命之源。世界上的所有东西都离不开水。人体内的水分和体重的比例大概是70%。人们可以三天不吃食物，却不可以三天不喝水。同理可证，对于其他生物也是一样的。更糟的是，没有水，万物都会停止了。我们无法发电，世界即将陷入黑暗中。手机的零件无法造成。我们就没办法与其他人联系。总之，水是很重要的。我们需要保护它，节约它。