He is a genius, but even experts sometimes make mistakes. He also makes mistakes sometimes.

In the field of organic chemistry, furazan is an important compound.

This picture is completely symmetrical.

What is the object of this project?

My grandfather was born in the Taisho era.

She always recognizes the importance of her family.

He has the courage to face difficulties.

This mineral is called anhydrite.

Maintaining oral hygiene is very important for overall health.

He is working at the pithead.