To understand will be one of his necessary duties.

She seemed to be steeling herself to perform an unpleasant though necessary duty.

Their chief utility was to free American soldiers from routine but necessary duties.

I don't believe the work to be arduous, so you'll be expected to take on other duties as necessary.

He did not love foreign affairs or enjoy his job but deplored it as a necessary duty.

They looked calm and determined, as though waiting to carry out some unpleasant but necessary duty.

Bond knew that all ranks would stop everything but the most necessary duties to listen.

To succeed in this useful and necessary duty required much hard work.

Since there was no staff organization, company officers and volunteers performed the necessary duties.

That left very little floor space, but it did give me a place to pretend to do the necessary managerial duties.