podwójny obowiązek

Or I'll have you on double duties for the rest of the year.

He had no right to ask me to pull double duty.

One principal does double duty as the school art director.

It appears that our young friends will be asked to do double duty, then.

Such a unit can do double duty as a car radio.

The double duty did not affect his performance in either series.

A man on the ninth floor was doing double duty.

The two front ones had little hands; the middle legs served double duty.

Now they want to see their money do double duty.

Now her computer does double duty as a research tool and a movie player.