"Maris's pursuit of Ruth's 60 down the stretch was a tremendous feat that isn't quite in the same category as these other records," Siwoff said.

But it is a tremendous feat of endurance.

Miles below lay a decapitated mountain, the whole of its summit sheared away by some tremendous feat of engineering.

All in all the place was a tremendous architectural feat, one that would be difficult to duplicate even in pre-war times.

Really capable of tremendous feats!

By a tremendous feat of strength, he managed to wedge there, an arm's-length off the floor.

"It would be a tremendous historic feat," Robinson said by telephone from Los Angeles.

Under the special circumstances that prevailed, it was a tremendous feat.

"How do you intend to accomplish this tremendous feat?"

"That was a tremendous feat."