It's very shallow, and there's a lifeguard on duty whenever it's open.

河水很浅，而且对外开放的所有时间都有救生员当值。

" On duty doing what? " said Ron quickly.

“值什么班？”罗恩忙问。

Stephen was born while his father was on duty at the Bethlehem, Pennsylvania, iron factory.

斯蒂芬出生时，他的父亲在宾夕法尼亚州伯利恒的刚铁厂值班。

Over a repeating cycle of 12 years, each animal is on duty for one year.

在12年的循环中，每动物都会执勤一年。

Above, spy frigate is also on duty.

在空中，军舰鸟间谍也在拍摄。

Alrighty. This I would call mom on duty.

是我的妈妈装。

Mom on duty, you need a lot of pockets.

做妈妈的时候你会要很多口袋。

And you can see this fishy whenever you like in case Cyril's on duty.

如果西里尔要值班，你可以随时看到鱼。

The beaches in Alexandria currently closed because of coronavirus. Lifeguards are not on duty.

亚历山大的海滩目前因冠状病毒而关闭。无救生员值班。

" Oh I am glad I'm not on duty, " muttered Mr. Weasley sleepily.

“哦，幸亏我没有值班，”韦斯莱先生睡意浓浓地嘟囔说。

The teacher on duty crossed the playground to investigate.

值班老师穿过操场去查看原因。

Policemen on duty wore black badges to honor the victims.

值班警员佩戴黑色徽章以此缅怀。

While on duty, Estonian Navy together with the Finnish Navy organized small military exercises.

执勤期间，爱沙尼亚海军与芬兰海军一起组织了型军事演习。

The same porter was on duty, I found, as had been there when I arrived.

我发现值班的还是我来时就在那儿的那位搬运工。

But in this small Health Center, only one doctor is on duty.

但在个的健康中心，有一名医生值班。

" If I were on duty..." said Mr. Weasley, glaring angrily at the amulet seller.

“如果我在值勤… … ”韦斯莱先生说，怒气冲冲地瞪那个卖护身符的人。

Eight staff were on duty at the facility which houses a 149 permanent residents.

现场有八名执勤人员，该疗养院居住149名居民。

Even on duty, the paramedic daughter checks in occasionally, from the ambulance, between hospital runs.

身为护理人员的女儿，即使在值班，偶尔也会在来回医院的途中，从救护车上打来报平安。

The guard fell asleep while he was on duty last night.

守卫昨晚值班时睡了。

So far, 1,300 National Guard members are on duty.

到目前为止, 1300名国民警卫队成员已经投入到救援行动当中。