The Lord protects us.

He feels responsible as the head of the family.

He is the lord of this region.

What are you doing?

My biological clock is completely messed up.

The parasympathetic nervous system helps our body to relax and conserve energy.

He is a carnivorous man, being aggressive in relationships.

The police arrested him on suspicion of trespassing.

It is important to learn about the prevention and treatment of the human immunodeficiency virus.

The human immunodeficiency virus destroys the immune system, making the body unable to fight disease.