Good environment can make people feel happy. To improve the environment means to qualify our life . What should we do to improve our environment ?

　　We should plant more trees . And we should prevent those factories from pouring waste water into rivers , lakes and fields . Whenever we see litter on the ground , we should pick it up and throw it into a dustbin .

　　Don’t spit in public places . Don’t draw on public walls . It’s our duty to keep our earth clean and tidy.

　　良好的环境能让人心情舒畅。改善环境，意味着修饰我们的生活。 改善我们的环境，我们应该做些什么呢？

　　我们应该种更多的树。我们应该防止这些工厂废水浇入河流，湖泊，田野。每当我们看到地上有垃圾，我们应该拿起它，并把它扔进一个垃圾箱。

　　不要在公共场所随地吐痰。不要在公共墙壁乱画。让我们的地球保持干净和整洁是我们的职责。