Reducing the amount of sleep students get at night has a direct impact on their performance at school during the day.

减少学生晚上的睡眠时间会直接影响他们白天在学校的表现。

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On the prom night, girls change their school uniforms for an evening dress and high heels.

在毕业舞会之夜，女孩子们脱掉校服，换上晚礼服和高跟鞋。

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They would put them beside their beds at night, on the seats when sitting on buses, and next to their desks at school.

他们睡觉时会把它们放在床边，坐公共汽车时放在座位上，在学校时放在课桌旁边。

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Minutes into his performance, throngs of sobbing school-aged "Beliebers" were hauled away by parents desperate to catch the last trains home on a school night.

CNN: STORY HIGHLIGHTS

We see a video of two teen-age boys appearing to rape Rosie in the basement of their school on the night that she was murdered, and a teacher perhaps crossing the line in his relationship with her.

NEWYORKER: Northwest Noir

Frans van der Mark said he received a phone call from his children's school late on Sunday night advising him to keep them at home.

BBC: Dutch police make arrest over Leiden school gun threat