四级作文范文
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Harmfulness of Stay up Late
    General competition in the job market. Greater variety of entertaining activities. And the resourceful internet are keeping people awake all right. We are all staying up late than before. Busy with reading ,watching TV, entertaining ourselves and surfing on the internet. But it is absolutely harmful to burn the mid-night oil.
stay
up
late
！
      When we go to bed late. We are robbed of some sleep. Thus we will feel tired and not energetic enough ...