Remembering the fifty sounds is important for learning Japanese.

He is interested in the study of constructed languages.

The Stegosaurus was a type of dinosaur that had large plate-like bones on its back and spikes on its tail.

The Stegosaurus was a type of dinosaur that had large plate-like bones on its back and spikes on its tail.

He is working as a representative of the United Nations.

Have you seen my eraser?

Cold fusion is a part of physics and is a phenomenon that is not yet fully understood.

Research on cold fusion is still controversial.

Could you tell me your postal code?

Yugoslavia was a country that once existed.