a drug that reduces excitability and calms a person
Adjective:
capable of depressing physiological or psychological activity or response by a chemical agent
造句
用作名詞(n.)
Despite being classified as a depressant, alcohol initially acts as a stimulant on the central nervous system. 雖說被劃定為鎮(zhèn)靜劑，酒精最初卻是被當(dāng)作中樞神經(jīng)系統(tǒng)的興奮劑。