noun 下载 🔗分享 镇静剂,安定药 An agent or drug that sedates, having a calming or soothing effect, or inducing sleep. Examples : "The doctor prescribed sedatives to help the anxious patient sleep better at night. " 医生给这位焦虑的病人开了镇静药,帮助他晚上睡得更好。 medicine substance body mind 与AI对话词汇游戏阅读练习