名词
中文翻译：Unknown
同义词：
['Sit-down', 'Sit-in', 'Sit-up2. 例句：1. The students sat down to study for the exam.（学生们坐下来准备考试。）']
例句：
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1. 同义词：Sit-down, Sit-in, Sit-up2. 例句：1. The students sat down to study for the exam.
学生们坐下来准备考试。
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2. He sat in on a meeting that was not meant for him.
他参加了一个本不属于他的会议。
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3. She sat up late into the night, unable to sleep.
她整夜坐起来，无法入睡。