A unary operator operates on one operand.

In this math problem, it is important to correctly understand the operand.

Binary operation is one of the basic concepts in algebra.

We should always remember the power of Kannon in difficult times.

The central processing unit of this computer is very fast.

A binary operator is one of the basic concepts in algebra.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.