| 释义 |
sed.a.tiveH5sed7E7tIv, $-tIvn [C]镇静剂He was hysterical after the accident and had to be given a sedative (= a substance which calms people).事故后，他变得歇斯底里，不得不给他服镇静剂了。This drug has a sedative effect and should not be taken when driving.这种药有镇静的作用，开车时不应服用。
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