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三、Improve our environment 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 . Dont spit in public places . Dont draw on public walls . Its our duty to keep our earth clean and tidy . 三、改善我们的环境 好的环境能让人感到快乐。改善环境意味着资格我们的生活。我们应该做什么来改善我们的环境? 我们应该种更多的树。我们应该阻止那些工厂从浇注废水流入河流、湖泊和领域。当我们看到垃圾在地上,我们应该把它捡起来,扔进一个垃圾箱。不要在公共场所随地吐痰。别把公共墙壁。这是我们的责任,让我们的地球整洁。 | 
