名詞 tranquillizer:

1. a drug used to reduce stress or tension without reducing mental clarity
   同義詞：tranquilizer, tranquilliser, antianxiety agent, ataractic drug, ataractic agent, ataractic

1. Doctors are still at issue over the proper use of tranquillizers.
   醫(yī)生們對如何適當(dāng)使用鎮(zhèn)靜劑的問題意見仍不一致。
2. She's on (ie is taking) tranquillizers.
   她經(jīng)常使用鎮(zhèn)靜劑。