He used the teleportation technique to escape from the enemy.

He is a master of kunai technique, and no one can imitate his skills.

He is interested in necromancy.

He is interested in ancient divination techniques.

My younger brother underwent an appendectomy yesterday.

He decided to have a vasectomy.

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.