Binary operation is one of the basic concepts in algebra.

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

This old operational amplifier still works accurately.

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

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

The central processing unit of this computer is very fast.

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.