He likes to take a walk in the park at dusk.

He is a cat lover and plays with his cat every day.

My beloved cat is very cute.

Prevention of sexually transmitted diseases is very important to protect your own health and that of your partner.

He is sickly and often misses school.

He often misses school because of his sickliness.

He suffered from lung disease for a long time.

How does this pathogen infect humans?

My sick friend is fighting his illness with cheerfulness every day.

We have developed a new method for the tending of crop seedlings.