(单词翻译:单击)
Thursday marks the World Sleep Day. A first ever report into Chinese people’s sleeping quality shows nearly 70 percent of people in China use cellphones and computers before they go to bed, with many staying up until midnight. Now experts say they are ruining people’s sleep.
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nerves
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n.神经紧张 vt.鼓起勇气 | |
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tightened
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收紧( tighten的过去式和过去分词 ); (使)变紧; (使)绷紧; 加紧 | |
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index
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n.食指;索引;标志;指数;v.把...编索引 | |
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