Depressant

[dɪ'pres(ə)nt] or [dɪ'prɛsnt]

解释:

(adj.) capable of depressing physiological or psychological activity or response by a chemical agent .

格里菲思校对--From WordNet

解释:

(n.) An agent or remedy which lowers the vital powers.

校对:拉弗尔斯