The most difficult feat that he had ever accomplished lay in making his legs behave themselves.

"And what clever tactics will accomplish such a difficult feat?"

She relaxed and let her mind spin off into free thinking, a feat not too difficult considering the late hour.

She sounded pleased with him, as though he'd at last mastered a difficult feat.

That was a difficult feat given the complex engineering problems involved in mass transit projects.

It is perhaps the most difficult feat in sports.

Resolving to move his whole family to America, he accomplished this difficult feat in 1799.

I pointed out that this would have been a difficult feat, but I knew what he meant.

She squinted up at the ceiling as if lost in a particularly difficult feat of recall.

It was not such a difficult feat, after all.