警卫任务：指负责守卫和保护特定区域或目标的职责和任务。
the duty of serving as a sentry
同义词： guard / sentry duty / sentry go
警卫岗
... guard collar 防护圈 guard duty 警卫岗 guard electrode logging 屏蔽电极测井 ...
... ward 病房 guard duty 警卫任务 safety device 安全装置 ...
...《半条命:蓝色转变》重制版《守护任务》画面对比 《半条命:蓝色转变》重制版《守护任务（Guard Duty）》放出最新截图对比，与原版相比提升了的不只是画面质量，还有更...
With several years of Army National Guard duty under his belt.
依仗着在陆军国家护卫队服役的几年年经验。
Like a sentinel on guard duty, or an artist working with his paints.
就像哨兵要时刻监守自己的岗位，画家要专心做画一样。
Instead of 27 hours on tower guard duty, he's reading Arthur's Back to School Day.
他终于可以不用在瞭望哨里面值勤27小时了，而是手捧阿瑟的《回归学校的日子》，美美地阅读起来。
He added he was surprised he had been given a firearm to go on guard duty.
While he was on guard duty in a watchtower that morning, insurgents attacked with rocket-propelled grenades.
The soldier was quoted as saying that he killed his platoon and squad commanders while on guard duty.