名词
中文翻译：监考者
同义词：
['monitor', 'probationer', 'inspector', 'supervisor例句：1. The invigilator made sure that all students were on time.（监考员确保所有学生准时。）']
例句：
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1. The invigilator made sure that all students were on time.
监考员确保所有学生准时。
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2.The invigilator noticed that the exam paper was not properly marked.
监考员注意到试卷没有被正确标记。
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3. The invigilator was responsible for ensuring the safety of the students during the exam.
监考员负责在考试期间确保学生的安全。