duro

Ha sido un día muy duro con muchas decisiones difíciles.

It has been a very tough day with many difficult decisions.

El pan de ayer está duro, hay que comprar pan fresco.

Yesterday's bread is hard, we need to buy fresh bread.

Trabaja muy duro para mantener a su familia adelante.

He works very hard to keep his family going.

Es duro ver a un amigo sufrir y no poder ayudar.

It is hard to see a friend suffer and not be able to help.

Le dio un golpe duro a la pelota y la sacó del campo.

He gave the ball a hard hit and sent it out of the field.