I lost my precious belongings.

There are three post offices in my town.

I mailed a letter at the post office.

This tune is my favorite.

My father works at a post office branch.

Where is the cathode of this battery?

He played a beautiful serenade for me.

During the polar night period, it's a very strange experience that the sun doesn't rise.

The Far East is a geographical term referring to a part of Asia.

Polar bears live in extremely cold areas.