His house is very big.

He lived in Japan for about 10 years.

Understanding the structure of atoms is a fundamental part of physics.

He is a person who keeps promises.

I found some useful kitchen utensils at the 100 yen shop.

He is a 'big friend', an adult fan of that anime.

This nuclear reactor is designed to be very safe.

Database transactions need to ensure their atomicity.

The atomic number of helium is 2.

I learned about valence in chemistry class.