他们发誓要忠实履行自己的职责。
They swore an oath to carry out their duties faithfully.

在履行职责的时候，他得会见各个阶级的人。
In the prosecution of his duties, he had to interview people of all classes.

你必须熟悉自己的新职务。
You must acquaint yourself with your new duties.

维护公共秩序是警察的职责。
It's the duty of the police to preserve the public order.

那位官员必须免职。
That officer must be removed.

在我们大多数办公室任职的是志愿人员。
Most of our offices are staffed by volunteers.

董事让他的儿子从最低级的职员做起。
The director made his son start on the bottom rung of the ladder as an office boy.

主席一职由委员会的成员轮流担任。
The post of chairman rotates among members of the committee.