knockout pill 的近义词 20 个

• medication
• narcotic
• opiate
• sleeping pill
• analgesic
• anodyne
• barbiturate
• depressant
• dope
• downer
• drug
• hypnotic
• pacifier
• tranquillizer
• calmant
• calmative
• nerve medicine
• pain pill
• pain-killer
• quietive