The level of corticosterone rises due to stress.

The border patrol is strictly monitoring to prevent illegal immigration.

Cock-a-doodle-doo, the early riser uncle shouted in the chicken coop.

His music has a melancholic atmosphere.

Yesterday, a traffic accident occurred near me.

He is a famous composer.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.