good environment can make people feel happy. to improve the environment means to qualify our life . what should we do to improve our environment?
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？
we should plant * trees . and we should pr*nt those factories from pouring waste water into rivers , lakes and fields . when*r we see litter on the ground , we should pick it up and throw it into a dust*n .
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*，我们应该拿起它，并把它扔进一个*箱。
don't spit in public places . don't draw on public walls . it's our duty to keep our earth clean and tidy.
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。
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