on duty

汉语翻译

例句：

1. Half the garrison is/are on duty.
   有半数卫戍部队在执勤。
2. I go on duty at 8:00 am.
   我早晨8点钟上班。
3. The teachers on duty are policing the school buildings during the lunch hour.
   在午饭时间，值班教师负责维持校内秩序。
4. Who is on duty today?
   今天谁值日?
5. Please bleep the doctor on duty immediately.
   请立刻用传呼机召值班医生。
6. I arrive at the hospital at eight o'clock, but I don't go on duty until nine.
   我八点钟就到医院了，但是九点钟我才去值班。
7. The rule is that someone must be on duty at all times.
   按照规定，任何时候均需有人值班。