Not one day, scarcely one hour had been free of grueling labor.
It isn't a grueling competition like the 'Open' or even the 'Limit.'
However, it was at Pond Farm we had some of our most grueling experiences.
I had a grueling battle with him, and at the end of two hours and fifty minutes he broke my hook.
With him to show the way the swamp became merely a hard, grueling mush ...