Polar bears live in extremely cold areas.

Antarctica is the coldest place on Earth.

He is good at playing Beethoven's concertos.

My father works at a local broadcasting station.

The sinusoid is used to represent many phenomena in nature.

She decided to try out her new eyeshadow.

They have been friends for a long time.

Wave function is a fundamental concept in quantum mechanics.

He continued hard labor all day long.

He explained to me in detail about the constellations of the zodiac.