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最佳答案：They are material waste,organic waste,inorganic waste and poisonous & harmful wa
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最佳答案：为学生而环保说起环保,并不是空洞的概念.即使你还是一个学生,也可为环保尽力.早上6点起床,一大早起来念书,效果好又省电.在上厕所时节水.一般的马桶水箱中约存有1
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最佳答案：Harmony with the environment is that we live in on Earth,who is a natural son,an
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最佳答案：Once man did not have to think about the protection of his environment.There wer
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最佳答案：如果太现突兀,可以稍加铺垫,如果你觉得结尾家环保的句子可以升华主题就加吧,但是要适量,太多会现烦锁.
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最佳答案：旁白:It's a nice day.bBut flowers and trees are not happy.tree:Hello,flower.I don'