As is vividly depicted in the picture, two drain pipes are draining much sewage into the river while some chimneys emit poison gas into the sky.Why do our environment get more and more bad? The main reason is there are a lot of factories that emit so much sewage and poison gas that aren't purified into our nature directly. Besides, we don't have a few good habits, so you can see littering, spitting and smoking frequently. There are so many people who are using plastic bag.Of course, we need plenty of factories because they will promote the development of our economy. But does it mean that our environment has to be contaminated? Our economy must be development, but it shouldn't be at the expense of the pollution of our environment. We shouldn't be so selfish that we disregard the next generation. We must protect our environment! On the one hand, it isn't until we dispose of sewage and poison gas that we can emit . On the other hand, we must encourage people to give up the bad habit.Let's work together to have a beautiful country!

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（实习编辑：高奕飞）