| 释义 | 
		 seda·tiveBrE /ˈsedətɪv/NAmE /ˈsedətɪv/ nouna drug that makes sb go to sleep or makes them feel calm and relaxed 镇静药 SYN tranquillizer   doze,  dream,  drowsy,  insomnia,  oversleep,  REM,  sedative,  sleep,  soporific,  tired ▸ seda·tive  adjective [usually before noun] ◆the sedative effect of the drug 这药物的镇静效果 |