He's on duty twenty-four seven.

他不分昼夜地天天上班。

Who's on duty today?

今天谁值班？

There will only be a skeleton staff on duty over the holiday.

假期将只留必需的少数职员值班。

It was Mrs. Dearden's day off, and Paul was on duty in her place.

那天是迪尔登夫人休息日，保尔替她上班。

Robyn asked the deputy on duty if she could speak with Sheriff Adkins.

萝宾问值班警官她能否跟县治安官阿德金斯谈话。

In addition to these arrangements, extra ambulances will be on duty until midnight.

除了这些安排以外，另增救护车值班至午夜。

The student on duty should hand out the exercise books before class.

值班生应该在上课前分发练习本。

The nurse's action caught the attention of the doctor on duty that day.

那天护士的举动引起了值班医生的注意。

We don't do any washing on duty.

我们值班的时候不洗衣服。

Shouldn't you be on duty in Room Four?

你不是应该在4号房值班吗？

The next crew relief comes on duty at 9 o'clock.

下一批换班的员工9点钟接班。

Although it is raining heavily, the policemen are still on duty in the street.

虽然下着大雨，但警察们仍在街上执勤。

Although it's a public holiday today, some firefighters in our city are still on duty.

尽管今天是公共假日，但我市的一些消防队员仍在执勤。

When it is sleeping, one or two of its arms are still on duty, keeping moving.

在睡觉的时候，它的一只或两只触手依然醒着，会不停地活动。

It is the rule of our school that the student who is on duty should clear up the classroom.

当值的学生应该打扫教室，这是我们学校的校规。

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，拉米斯公司雇佣的一位非常粗心大意的叫做查尔斯·麦克劳林的司机在当值时又卷入了另一起事故。

A policeman must not smoke while he is on duty.

警察当班值勤时不得抽烟。

She goes on duty in half an hour.

半小时后她开始值班。

We have lifeguards on duty.

我们有救生员值班。

Luckily, there was a guard on duty.

幸运的是，有一个保安在值班。

Ganga Bai was on duty in the evening.

甘佳巴姨那天晚上值班。

An operator on duty.

一个值班人员。

The doctors on duty couldn't stop the blood.

值班医生未能止住出血。

Please wear the uniforms when they are on duty.

值班时穿上制服。

Maybe it's because they drink alcohol while on duty.

可能是因为他们在上班时间里喝酒喝高了吧。

Michael called each sheriff on duty in the area.

Michael给该地区的每位警长打电话。

Rich families bring food and water to those on duty.

富有的家庭会为执勤的人送去食物和饮用水。

Amanda: Really? Well, I will be on duty next Monday.

阿曼达：真的吗？那，我下周就去报到。

If you have any food, please give it to the guard on duty.

如果您有食品，请喂给值班警卫。