Aikawa is my best friend.

Hetao is a name that has the same meaning as Ordos.

It is said that this watercourse was deep enough for large ships to pass through in the past.

A river dolphin is a rare type of dolphin that lives in freshwater.

The Ganges is one of the most important rivers in India.

I have visited the Yellow River.

Tengawa is another name for the Milky Way galaxy where we live.

The Wei River is one of the important rivers in China.

The great icosihemidodecahedron is a cube with a very complex shape.

Mr. Masotani is my best friend.