If you're given a sedative, you may remain awake, but groggy, during surgery.

如果您使用了镇静剂，那么在手术的过程当中，您虽然神智是清醒的，但始终会觉得有点迷迷糊糊的。

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Milk contains tryptophan, the amino acids that have a sedative effect and calcium that helps the brain use tryptophan.

牛奶中含有色氨酸，具有镇静效果的氨基酸，以及可以有助于大脑利用色氨酸的钙。

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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.

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。

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Raimondi says forcefully injecting a detainee with a sedative would only occur in extraordinary circumstances.

NPR: Two Immigrants Say U.S. Agents Drugged Them

Infants receive a sedative to minimize shivering, since it could raise body temperature.

WSJ: Hypothermia Cure for Babies: Cooling Infants to Battle Brain Damage

If that failed, then, as a last resort, a sedative could be administered.

NPR: Two Immigrants Say U.S. Agents Drugged Them