大多数学校的制度强迫青少年在一天中状态不佳的时间学习，睡眠被剥夺严重威胁着许多大学生。
Most school regimes force teenagers to function at a time of day that is sub-optimal, and many university students are exposed to considerable dangers from sleep deprivation.
大多数学校的制度强迫青少年在一天中状态不佳的时间学习，睡眠被剥夺严重威胁着许多大学生。
Most school regimes force teenagers to function at a time of day that is sub-optimal, and many university students are exposed to considerable dangers from sleep deprivation.
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