What it says is we have working royals, who are putting back into society, doing their duty and serving.

人们会说我们的王子和王妃没有因婚礼而偷懒，他们回到社会中履行自己的职责并服务大众”。

youdao

And America will never forget the ones who have fallen — men and women last seen doing their duty, whose names we will honor forever.

美国将永远不会忘记那些以身殉职的男女将士，将永远铭记。

youdao

We also remember those who through doing their duty cannot be at home for Christmas, such as workers in essential or emergency services.

我们依旧记得那些因为职责而不能在家过圣诞节的人比如一些必要的服务业。

youdao

Many soldiers say the best way to honor those killed in the shooting is to continue doing their duty.

VOA: special.2009.11.14

In the United States, more boards are doing their duty (see article).

ECONOMIST: Firing the boss

But the outrage was deepened because the victims were doing their duty: unarmed, young women who had taken an oath to protect and serve others.

BBC: Public service and personal sacrifice

He maintains that his men were doing their duty.

BBC: Col Wilford: Don't blame my soldiers