The Black Death struck Europe in the 14th century, taking many lives.

A stray cat is playing in my garden.

He understands the meaning of the proverb 'Teaching is half learning', which means that teaching leads to one's own learning.

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.