Families and loved ones play an essential part in supporting these operations but also carry a difficult burden.

The court recognized a "patient care defense," but imposed a difficult burden.

The result is to place a special, difficult burden on Congress.

"I didn't want to leave her with a difficult financial burden," he said.

It wasn't something he thought about very often, because it was a difficult burden to bear.

Hans was close behind with an equally difficult and inappropriate burden.

They stop working, increasing the already difficult burden on relatives or friends.

That would bring a very difficult burden, because of the media pressure and nothing to deflect it.

"That must be a difficult burden for you," I said.

"It offloads from the teacher one of the most difficult burdens she has."