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最佳答案：trees are important to us.
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最佳答案：Don't destroy the trees and flowers
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最佳答案：Trees evergreen,The flower opens frequently
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最佳答案：With the trees also reduce the deterioration of the environment.
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最佳答案：砍伐树木和森林对环境有不良影响Cutting trees and forest has negative effect on the environment.
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最佳答案：Some people cut down trees to earn money.
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最佳答案：How surprised he was when he saw the trees were seriously destroyed !
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最佳答案：The forests are important to us,so we must protect them.
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最佳答案：下载百分翻译
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最佳答案：According to the characteristics of the trees and external factors, probes into