名词
中文翻译：Unknown
同义词：
['absence', 'absence from', 'non-attendance']
例句：
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1. She wasabsent from the meeting yesterday because she had a prior engagement.
她昨天缺席会议，因为她有先前的约会。
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2. The student's absence from school for the day was unexpected.
学生当天缺席学校是出乎意料的。
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3.The teacher noticed that some students were absent without cause.
老师注意到有些学生无故缺席。