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最佳答案：Everyone could affect the environment and take the measure to improve it. There
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最佳答案：Water is very important to the human beings.But now many rivers and lakes are po
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最佳答案：wasting paper is the most commonly seen bad habit.it is detrimental to forest pr
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最佳答案：for reducing greenhouse gas of atmosphere,on the one hand,we need to cut down el