a drug that reduces excitability and calms a person
同义词：sedative, sedative drug, depressant
形容词 down:
being or moving lower in position or less in some value
同义词：down
becoming progressively lower
同义词：down
understood perfectly
同义词：down, down pat, mastered
extending or moving from a higher to a lower place
同义词：down, downward
being put out by a strikeout
同义词：down
lower than previously
同义词：depressed, down
shut
同义词：down
not functioning (temporarily or permanently)
同义词：down
low in spirits
同义词：blue, depressed, dispirited, down, downcast, downhearted, down in the mouth, low, low-spirited
downer例句
What a downer that guy is!
那家伙多让人泄气呀！
downer详细解释
down.er n.Slang （名词）【俚语】 A depressant or sedative drug, such as a barbiturate or tranquilizer.镇定药：抑制药，如巴比妥类药物或安定药A depressing experience or predicament.沮丧的：令人沮丧的经历或处境
