Researchers from Boston College in the USA have found the lack of sleep is a significant - so important - factor in lowering the achievement of school pupils.
美国波士顿大学的研究者发现睡眠不足是导致学习成绩下降的重要因素。
Researchers from Boston College in the USA have found the lack of sleep is a significant - so important - factor in lowering the achievement of school pupils.
美国波士顿大学的研究者发现睡眠不足是导致学习成绩下降的重要因素。
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