death in line of duty

• 因公殉职； 因公死亡

death in line of duty的用法和样例：

例句

1. A policeman met his death in the line of duty.
   一名警察因公殉职。
2. EEP later donated to built a new school and named the school Jing Ning Jen after a teacher who had died on duty.
   燃灯随后捐助修建新的上房湾村小，并以因公殉职的女教师敬银珍的名字命名。