动词短语
中文翻译：上床睡觉
同义词：
['go to bed', 'retire to bed', 'settle down for the night']
例句：
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1. I went to bed at10 pm and didn'twake up until 6 am.
我晚上10点上床睡觉，直到早上6点才醒。
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2.She retired to bed early becauseshe was exhausted from working all day.
她早早地上床睡觉，因为她一整天工作后感到筋疲力尽。
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3. The couple settleddown for the night after a longday of sightseeing.
这对夫妇在一天的观光后决定安顿下来过夜。