He should change his self-righteous attitude.

He won the match by knockout.

He knocked out his opponent with a single punch.

The safe harbor rule is a law that protects companies from lawsuits by disclosing certain information.

This project was partially successful.

He always bluffs because he lacks confidence.

Writing a declaration is difficult.

Liquid oxygen is often used as rocket fuel.

He is a world-famous geographer.

Recently, this store has become so quiet that you can hear a pin drop.