on duty造句如下：
1、Although it was closed for the winter，the manager，Wang Youqiang，was on duty.
雖然已經接近冬天，但是磚廠的負責人王有強還在值班。
2、Ganga Bai was on duty in the evening.
甘佳巴姨那天晚上值班。
3、Liang ran into a riot in a factory when she was on duty for the first time.
梁思敏第壹次當班就趕上了壹起工廠鬧事。
4、The doctors on duty couldn't stop the blood.
值班醫生未能止住出血。
5、It was Mrs. Dearden's day off，and Paul was on duty in her place.
那天是迪爾登夫人休息日，保爾替她上班。
6、We have lifeguards on duty.
我們有救生員值班。
7、When it is sleeping，one or two of its arms are still on duty，keeping moving.
在睡覺的時候，它的壹只或兩只觸手依然醒著，會不停地活動。
8、She goes on duty in half an hour.
半小時後她開始值班。
9、The next crew relief comes on duty at 9 o'clock.
下壹批換班的員工9點鐘接班。
10、In addition to these arrangements，extra ambulances will be on duty until midnight.
除了這些安排以外，另增救護車值班至午夜。
11、A policeman must not smoke while he is on duty.
警察當班值勤時不得抽煙。
12、Please wear the uniforms when they are on duty.
值班時穿上制服。
13、It is the rule of our school that the student who is on duty should clear up the classroom.
當值的學生應該打掃教室,這是我們學校的校規。
14、On March 13th，while on duty Charles McLaughlin，a very careless driver employed by the company Lummis was involved in another accident.
在3月13日，拉米斯公司雇傭的壹位非常粗心大意的叫做查爾斯麥克勞林的司機在當值時又卷入了另壹起事故。?
15、He's on duty twenty-four seven.
他不分晝夜地天天上班。