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

Please cut this pizza in half.

He is enriching his sentences by using antonyms.

I own the copyright of this book.

Don't forget to bring your mess tin when you go camping.

The radius of this circle is 5 centimeters.

He is our squad leader.

Let's define the range of this project.

This book is out of copyright, so you can copy it freely.

Let's learn the method to derive the initial letter of a mora using a semi-voiced sound mark.