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最佳答案：Abstract: The goal carries on the quality analysis to three kinds of different m
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最佳答案：Thank you very much for taking the time to accept my call
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最佳答案：Some students are sending and receiving text messages on the cell phone during c
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最佳答案：This is a waste of your precious time这就是在浪费您的宝贵时间
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最佳答案：母亲经常告诉我要好好利用宝贵时间,远离那些我不信任的人Mother often tells me to use the precious time wisely
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最佳答案：老师我迟到了。。好意思