He is facing a difficult situation.

His opinion is the polar opposite of mine.

You can solve this problem using polar coordinates.

He is an excellent arranger, and has produced many musical works.

He is good at playing Beethoven's variations.

Polar bears live in extremely cold areas.

This anime, moar!

She's always a goody two shoes, and is well-liked by her teachers.

He is our class representative.

I practice Tai Chi in the park every morning.