trigger finger

剑桥词典

the finger that someone uses to shoot a gun
扣扳机的手指
medical   specialized
a disorder of the tendon of a finger that makes it difficult to straighten the finger once it is bent
扳机指（手指弯曲后难以伸直的病症）
If a trigger finger is left untreated , the finger may become permanently bent . 如果扳机指不作治疗的话，手指可能会永久弯曲。 返回 trigger finger