我们应该怎样保护环境,英语作文,
越简单越好,急用.
人气：156 ℃ 时间：2020-01-29 20:20:15
解答
Environmental problems are becoming more and more serious all over the world.For example,cars have made the air unhealthy for people to breathe and poisonous gas is given off by factories.Trees on the...
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