Today, a customer wanted to buy a adapter in the store and then I gave him the style and model he needed, and he said it was not the same as he had bought before. I said that, according to your request, it could satisfy your daily use, and then we talked for a while, and the customer was really adapte. R’s expert told a lot of more professional things that I didn’t understand, but I was more interested in adapter and other things. And at the moment, the shoppers were not very busy and they were not very busy. I told him some more professional knowledge. He told me that the next time adapter came in, he could refer to him. Those points will be more cost-effective.