The former is my friend, and the latter is my colleague.

An abnormality was observed in his anterior chamber.

This perfume contains ambergris, an expensive ingredient.

He is a kind person.

We must strive to protect the natural environment.

He was turned away at the gate of that restaurant.

His self-righteousness is making communication within the team difficult.

He should change his self-righteous attitude.

After a cold front passes, the temperature drops sharply.

Zen is a festival ceremony performed by the Chinese emperor.