My name is Tanaka.

I am studying Japanese.

We are going on a trip together.

He perfectly memorized the fifty sounds.

This plastic is made from a special polymer.

He was surrounded by his family when he was on his deathbed.

In chemistry class, I learned about the process of polymerization.

Through this chemical reaction, monomers polymerize to form polymers.

My room is twenty-five square meters.

During the war, he continued to support his family on the home front.