This check valve has the role of preventing water from flowing backwards.

This work is almost finished.

She plays a character named Maiko.

This shape is called a great icosihemidodecahedron.

The Tōhoku earthquake off the Pacific coast, which occurred on March 11, 2011, was the largest earthquake in Japanese history.

He worked hard without giving up.

The Reverse Address Resolution Protocol is a protocol for obtaining host names from IP addresses.

He stood up against the enemy.

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

This is a model of a great icosahemidodecahedron.