牛津电影里 100%
在执行任务时;在履行职责时
while doing a job
hero cop Avery Cross, who, less than a year ago, was shot in the line of duty while trying to save two Schenectady residents from the alleged Moto Bandit.
Justifiable homicide in the line of duty, OK?
释义来自《牛津高阶英汉双解词典》第 9 版