V-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.
例句
Severe migraine can be treated with a drug which constricts the blood vessels...
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.
我的嗓子发紧，所以我不得不把注意力集中在呼吸上。