He likes to take a walk in the park at dusk.

He has fundamental knowledge of mathematics.

His recovery was truly miraculous.

His new painting is being described as a Picasso-style work.

He was working in the rice field wearing a bamboo hat.

The grains of this rice are large, aren't they?

He decided to study abroad in America.

Beta particles have the same charge as electrons.

A boson is an important concept in physics.

An antiparticle is a particle that pairs with a matter particle.