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最佳答案：WaterWater is very important for biological,there is no water,no life on Earth.A
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最佳答案：After the Beijing Olympics,litters are being throw everywhere,even on the street
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最佳答案：A beautiful world 环保英语演讲稿Hello:everyone!Now I want to talk about a beatiful worl
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最佳答案：A volunteer —VeraVera is a volunteer in the Sunshine Club at school. She wants t