The syrinx of birds can produce different sounds depending on the species.

He seems to have a pessimistic view of life.

He lives in Michigan.

This directory contains the contact information of all employees.

He was appointed as the deputy commanding officer.

By chance, he met my old friend.

In the early morning, he brewed coffee and started his day.

He completed the project in a week.

I'm always busy during the daytime, and I only have time to rest at night.

He had been working overseas for an extended period of time.