1V-ERG (使)(身体部位,尤指喉咙)收紧,收缩 If a part of your body, especially your throat, is constricted or if it constricts, something causes it to become narrower. (使)(身体部位,尤指喉咙)收紧,收缩
Severe migraine can be treated with a drug which constricts the blood vessels. [VERB noun]
严重的偏头疼可以用一种收缩血管的药物进行治疗。
My throat constricted, so that I had to concentrate on breathing. [VERB]