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

他们被指控妨碍警察执行公务。

《牛津词典》

Too many have died, or suffered their own loss, in the course of duty.

太多的人在履行职责期间牺牲，或遭受个人损失。

youdao

Of course he spoke with a conventional sense of duty only, for that sort of wondering had not been unknown to himself in bygone days.

当然，他说这话的时候，是出于一种习惯的责任感，因为在过去他自己也不是没有产生过这样的疑问。

youdao

The nonprofit organization requires that in order to be chosen for inclusion on the wall, the officer must have died in the course of duty and served directly for a governmental agency with the powers to arrest.

NPR: Police Memorial Wall Comes With Some Tough Calls

"I think it is always worrying to see that police officers are regularly being assaulted in the course of their duty, " he said.

BBC: Assaults cost Welsh police 1,700 days off

Now, Kyra, there is no question, of course, there are still literally hundreds of generals and admirals on active duty in the U.S. military in Iraq, Afghanistan, here in the Pentagon and around the world.

CNN: Starr: Rumsfeld criticism 'extraordinary'