名词
中文翻译：安眠药
同义词：
['barbiturate', 'barbituric acid', 'barbital']
例句：
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1. He was given hexebarbital to help him sleep.
他被给予安眠药帮助入睡。
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2. The doctor prescribed a barbiturate for his insomnia.
医生给他开了一种镇静剂来治疗失眠症。
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3. The patient took the medication as directed and felt much better after several hours.
患者按照医嘱服用了该药物，几个小时后感觉好多了。