I heard that she works in the nightlife industry.

He makes a living by fishing as an occupation.

He joined the new company as a regular position.

My previous job was a teacher.

He works a day job and goes to school at night.

My diet is rich in protein.

His constitution makes him prone to catching colds.

The aerosol in this area is very dense.

This wall is made of chalky material.

The white matter in the brain plays a role in transmitting signals of nerve cells.