名词
中文翻译：打盹计时器
同义词：
['sleep timer', 'snooze timer', 'sleep timer']
例句：
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1.I set my alarm for 10:30 and used the sleep timer to get a good night's rest.
我设置闹钟在10:30，并使用睡眠计时器来获得一个好的夜晚休息。
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2. The baby was so tired that he fell asleep immediately after being put down in his crib.
宝宝太累了，放下后很快就睡着了。
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3.The doctor recommended that she use a sleep timer to help her sleep better at night.
医生建议她使用一个睡眠计时器来帮助她在晚上更好地入睡。