Only with great exertion did he finally pull himself free from the crack.

Along this level road we ran at full speed, and by great exertions managed to keep within twenty yards of the game.

But the head did not speak again, probably from its great exertion to overcome the monster.

The road was soon turned into mud, and the mere act of walking required great exertion.

I opened my eyes, and felt that it would be impossible to make a greater exertion.

He put in one great exertion, striking out with all four feet.

Then came a sound not so far below them, a deep breath as one might take after great exertion.

Her body ached, as if she had been through some great physical exertion.

We can identify the contents of a book without too great an exertion.

"It makes sense to be slack before great exertion, to lose control in advance of a big job, don't you think?"