labored

Struggling to sit up, his breathing was heavily labored and each inhalation caused him obvious pain.

Through the beautiful, windy autumn days, he labored at his difficult task, the task of telling a story.

Have we, then, labored at the most glorious of revolutions for so many years, to see it overthrown in a single day?

For some three years back I have labored under a disease of the throat—a bronchial affection—a severe affliction it was.

They were not pretenders and quacks; they were sceptics who denied subjective truths, and labored for outward advantage.

Robert was chairman, and had labored hard to prepare a few remarks with which to open the meeting.