Jack, I'm in trouble. Last time I forgot to say a very important part when introducing a product to a customer, how should I tell him?You can call her and say that part of the product is particularly important and needs to be explained again.George, have you had any business problems recently? Say it and let everyone help you solve it together.I have no difficulty.My work is proceeding smoothly, this time allows others to ask questions.I have difficulty. How can we understand the real needs of c