Baking soda is a useful item for cleaning and cooking.

The thirteenth day is my birthday.

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.

He is working as an attendant to the king.

There were various kinds of animals in the animal enclosure at the zoo.

He moved diagonally against the wall to avoid the danger of enfilade.

He came to this country as an immigrant when he was young.

Ryoichi is my best friend.