They undergo a rigorous routine of memorization designed to ensure completion within three years.

A rigorous daily routine of aerobics and weight lifting has narrowed the strength gap for the America women.

Every summer he followed a rigorous routine.

He follows a rigorous daily routine that intensifies when he trains for a fight.

"Bobby will continue to undergo an extrememly rigorous routine of physical therapy and will not be allowed any visitors."

And, for the 32-year-old, "being ready"involves a pretty rigorous routine.

He follows a rigorous daily routine that includes a brisk morning walk because, as he puts it: "The demons don't like fresh air.

Staying overnight or for several days at some of the zazen centers generally follows an even more rigorous routine.

Their work was a rigorous routine of vocal exercises.

At least one crewman is standing watch at any given time, and all members of the crew follow a rigorous and intensive routine.