But it was only the kind of mental exhilaration that came from prolonged effort.

So now we risk a prolonged effort and perhaps more lives of military and civilians on both sides.

"Tackling these problems demands prolonged efforts and huge expense," he said.

She leaned back against the cushions of the seat as if exhausted with the prolonged effort.

Slowing down a habitual eating rate isn't easy and tends to need prolonged effort.

His thighs felt like jelly from the prolonged effort of climbing the steep slope.

Due to prolonged legal efforts the land was later returned to the local tribe.

Is that extraordinary, prolonged political and cultural effort destined to end up in oblivion?

Because we have reached this point together after a prolonged joint effort - one that has taken several years.

These include: "intense, prolonged and repeated efforts to accomplish something difficult.