We visited the imperial mausoleum in Kyoto.

She made a life-sized doll.

I often go to the cinema on weekends.

A diphthong refers to the phenomenon where two vowels are pronounced consecutively within a single syllable.

When I was in my teens, I used to play soccer every day.

Do you understand the importance of this project?

Nitrogen monoxide is a cause of air pollution.

Nitrous oxide is one cause of air pollution.

He gripped the control stick and piloted the plane.

He resigned because the chess game became difficult.