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最佳答案：A large number of trees were cut ,excessive use of fossil fuels,to make our livi
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最佳答案：When Tom see his mother, he burst into tears at once.Children long to vacations.
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最佳答案：Official action taken mainly: 1. The construction of a large number of public tr
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最佳答案：for reducing greenhouse gas of atmosphere,on the one hand,we need to cut down el