arduously

She and others were questioned long and arduously by police without result.

In the conventional significance of the word her life was hardly toilsome, but it was none the less most arduously occupied.

Arduously, but without avail, she searched through all the drawers and cupboards of the Rattle-Pane kitchen.

"You have been working most arduously, Senor Carson," said Quesada.

From year to year he was arduously employed on most of the standing and many other important committees.