But my most arduous journey has been the one I have taken alone, unseen, within myself.

He clearly takes pride in his work and is willing to do even the most arduous task.

He had for many years the largest and most arduous surgical practice in London.

He considered it to have been the most arduous week of his life.

He will require you to per- form a most arduous Service in return.

"And getting it right, having all the pieces fall into place, made this one of the most arduous projects I've ever been involved with."

Accordingly it may be said that his was one of the most arduous exiles following the War.

This can be the most arduous and time-consuming part of painting.

The expedition is considered by military historians to have been among the most arduous in history.

But they were not pretty soon there, for this was the most arduous part of the journey.