Natural language understanding is an important field of artificial intelligence.

This old operational amplifier still works accurately.

Binary operation is one of the basic concepts in algebra.

In this sentence, 'beautiful' is the modified word.

Find the sum of the augend and the addend.

He is evaluated as an excellent employee.

We ask all insured persons to go through the procedures to make the payment of insurance money smooth.

The tepals of this flower have a very beautiful color.

By regularly checking the key performance indicators, you can understand the performance of the company and devise improvement measures.

The piston of the engine is moving.