Hang in there!
Tom is bearing down.
If at first you don't succeed, try, try again.
George is always working diligently and enthusiastically.
Patience and application will carry us through
John's working on a small slam.
Medical workers are trying to search into the root of SARS.
After months of futile labor, the scientist suddenly had a brainstorm and solved the problem.
It is gratifying to see one's efforts rewarded.
All Jeff’s hard work is paying off. He’s a leg up on the rest of his competitors.
It was a vain effort.
That effort will be bootless.
You must not relax your efforts.
The honor is the repayment for your efforts.
Much effort, much prosperity.