I prefer using mass transit over driving my car.

The temperature is measured in Kelvin.

I don't think it's necessary to go out tonight. For that matter, I'm too tired.

He studied martial arts for many years.

He is a master puzzler.

He mastered English easily.

The sides are carefully machined to fit the cylinders.

The spacecraft is manned by a crew of astronauts.

Although most islands in the ocean have been mapped, the ocean floor is generally unknown.

They are equally matched in their knowledge of English.