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最佳答案：I think he is wasting time
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最佳答案：Don't waste time for someone who doesn't worth it.
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最佳答案：Solving the problem at the first place can avoid the waste of both money and tim
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最佳答案：i wonder whether it's a waste of time or not ,since nothing has suprised me rece
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最佳答案：colleague students should have their own thoughts and you yourself should be qui