这听起来像是一种矛盾的说法，因为安必恩是一种镇静剂。
It sounds like an oxymoron, since Ambien is in the family of sedatives.
虽然酒精是一种镇静剂，其益处之一可能来自于酒精对心态的益康效应。
Although alcohol is a depressant, some of its benefits may derive from its salubrious effect on our mood.
从前那些夏天里，所有马达都装在舷内；距离稍远一些时，它们发出的声音是种镇静剂，是夏日睡眠的一种成份。
In those other summertimes, all motors were inboard; and when they were at a little distance, the noise they made was a sedative, an ingredient of summer sleep.
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