constrict

1. V-T/V-I If a part of your body, especially your throat, is constricted or if it constricts, something causes it to become narrower. 使收缩; 收缩

Severe migraines can be treated with a drug that constricts the blood vessels. 严重偏头痛可以用一种收缩血管的药物来治疗。

2. V-T If something constricts you, it limits your actions so that you cannot do what you want to do. 约束

She objects to the constant testing because it constricts her teaching style. 她反对频繁地测试，因为这约束了她的教学风格。