constricts
v．
1. 收缩，紧缩：使某物变得更紧或更小。
2. 限制，束缚：对某人或某事施加限制或约束。
例句
A drug that constricts the blood vessels.
收缩血管的药
《牛津词典》
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。
《柯林斯英汉双解大词典》
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。
