tranquilizer
n. 镇定剂;使镇定的人或物
例句
If a tranquilizer is prescribed, be sure your physician informs you of its possible side effects, such as addiction.
如果开了镇静剂,一定要让医生告诉你它可能带来的副作用,例如上瘾。
《柯林斯英汉双解大词典》
And the red ones are tranquilizer and blood - splatter darts.
红色的是镇定剂和血液缓流飞镖。
You're having a premature mid-life crisis. You need a tranquilizer.
你提前进入中年危机,你需要吃镇定剂。