on-duty hour

基本解释

Two police officers have the class take turns on duty, a 24-hour inspections.
干警们每班两人轮流值勤，实行24小时不间断巡查。
He knew a rescue team was on 24-hour duty at the Amherst Fire Department's north station.
他知道在安默赫斯特消防局的北站分所有救援队在24小时值班。
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Medical staff have been on 24-hour duty at the palace where the royal couple lives since November 20.
11月20日以来，医护人员已经在德仁太子夫妇居住的皇宫全天侯命。
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If any such problem developed, Sharon was instructed to call the twenty-four-hour hospice nurse on duty, who would provide instructions about which rescue medications to use and, if necessary, come out to help.
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