Polyoxymethylene is a plastic that excels in heat resistance and wear resistance.

I've never seen the kanji 卑 used in a name.

It's difficult to memorize the Hyakunin Isshu.

I like memorizing the Hyakunin Isshu.

He was sentenced to 20 years in prison.

懲 may not be used as a surname.

This compound has a tetrahedral molecular geometry.

Ogura Hyakunin Isshu is one of the classical literatures of Japan.

I spilled the powder in the kitchen.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.