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最佳答案：People express mixed views on the problem how teenagers get enough sleep
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最佳答案：In addition,there are two parks in the city which has wide streets and clean env
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最佳答案：Sound from the object’s regulate oscillation is called musical sound,Art express
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最佳答案：有很多词汇表示第一,但生命第一我以为要用Life the most important ,或者Life the first
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最佳答案：1. the trees can provide for the people the construction and manufacture furnitu