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最佳答案：It's everyone's duty to save the water.用形式主语翻译较好.
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最佳答案：I think we should treasure the food, energy, and offer our own strength in order
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最佳答案：We work together,practice bar!大家一起努力,勤俭节约吧!Let our sky bluer,the water clearer!让
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最佳答案：We are not a Doraemon,can't take out something from his pocket,so we should econ
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最佳答案：地铁的环境效益 Environment effect of underground节省土地 save land减少噪音 abate the noice减少干扰
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最佳答案：1.We should save every piece of paper and never waste one.2.Plant more trees.3.S
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最佳答案：For two T-shirt,I would like to choose the cheap one for buy a book.
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最佳答案：Nowadays, waste in our life is very serious. In order to improve students' reali
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最佳答案：With economic development, more and more households have the car. Car to make ou
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最佳答案：1.Save energy and resources effectively .2. Promote the concept of environmental