He is a hard man to please.
Examinations make the students work hard.
He works hard.
He is very hard on his servants.
He is hard of hearing.
A farmer has to work very hard in his field.
He encourages me to try hard and not feel frustrated.
A soldier’s life is very hard.
Early man had to lead a very hard life.
I have worked very hard to be at this position.
Everybody in today’s time is working hard.
He is working hard for a promotion.
His duty is very hard.