Translation of "duties" into Chinese

Sadly, these millions now include our colleagues from the United Nations who have died in fulfilling their duties.

令人悲伤的是,现在,在这千百万人中也包括了我们联合国中以身殉职的同事。

Is this a duty-free shop?

這是一間免稅商店嗎?

This role will be strongly focused on administrative duties given the number of staff involved annually.

鉴于每年涉及到大量工作人员,这一角色的重点将是行政职责。