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最佳答案：We must prevent the earth from polluting.
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最佳答案：For the wonderful dream of tomorrow, we should protect the earth from being poll
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最佳答案：The earth is our home,it provides us water,food and the enough space to live.How
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最佳答案：1,Mr Li is too busy,won't be able to see the game.2,how many of you have been to
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最佳答案：How did we cope with the animals living together with us on earth? We not only s
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最佳答案：If we are not destroying the nature by polluting the environment in a lot of way