昨天有一名警察在执行公务时受伤。

A policeman was injured in the line of duty yesterday.

《牛津词典》

他因妨碍警察执行公务而被逮捕。

He was arrested for obstruction of a police officer in the execution of his duty.

《牛津词典》

他们被指控妨碍警察执行公务。

They were charged with obstructing the police in the course of their duty.

《牛津词典》

噢，不了。谢谢你。我在执行公务中。

Thanks, but sorry, I'm on duty.

youdao

他去年在执行公务时殉职。

He was killed in the line of duty last year.

youdao

汤姆在执行公务时受了伤。

Tom was wounded in the pursuance of his duty.

youdao

正在执行公务的公务船舶；

Official ships that are on official mission;

youdao

不要妨碍警方执行公务。

Don't prevent the police to do affair.

youdao

我们是巡警，正在执行公务，请您配合我们的工作。

We are patrol policemen on duty. We need your cooperation.

youdao

我们是巡警，正在执行公务，请您配合我们的工作。

We are patrol policemen on duty. We need your cooperation.

youdao