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降低污染，保護環境_500字
關于環保的英語作文

Our environment is very important for our lives 。 We need the fresh air， the clean water and so on 。 In the past， there were many trees around us ，the air was fresh and the river was clean。But now，people cut down many trees。 Air pollution and water polloution are very serious 。 The environment around us bees very terrible 。 We should protect our environment。 First， w （共 659 字） [閱讀本文] >>

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