"First of all, I want to correct one of your mistakes." I said. "Big customer sales and large sales are two different concepts. Lingbo company you do is a big customer, but you only sell hundreds of thousands, belonging to small sales. Therefore, big customer sales are not equal to large sales. Well, what's the difference between big sales and small sales?

"Yes, that's what it all means." Nanlin was very interested in my topic and could not wait to say it. All told, he frowned and listened questioningly. Looking at my watch, I said, "It's not too early today. In a moment, McDonald will come to train you. It's...