八年级《数学》（浙教版）上册练习卷——SMJ 答案

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The environment is difficult to be that it has contaminated an environment because of people has produced very many rubbishes. We can see much rubbish on stream. It’s difficult for us to breathe.
So protect the environmental is important for us. We should produce ours environment. First, we shouldn’t to throw the litter. Second we shouldn’t pouring waste water into the streams. Third we shouldn’t cut down too many trees.
The environmental is important for us. So we should protect the environment.