Yet they rated the students who have received eight hours or less as having the most trouble recalling old material, learning new lessons, and completing high-quality work.
然而，他们认为那些睡眠时间不超过8小时的学生在回忆旧知识、学习新课程和完成高质量工作方面面临着最大困难。
Straight from school, she went to ballet lessons. When she got home at eight o 'clock, she went to bed.
每天放学后，她就直接去上芭蕾舞课，一直上到晚上八点才回家。
I go to school at half past eight and lessons start at nine o 'clock.
我八点半去学校。九点钟开始上课。
I go to school at half past eight and lessons start at nine o 'clock.
我八点半去学校。九点钟开始上课。
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