Ⅰ.中心学习：Business Etiquette 商务礼仪
Michael: What are you doing for lunch today Billy?
Billy: I was going to have a desk-lunch.
Michael: I didn't realize that you were so busy these days.
Billy: I want to catch up on some journal reading.
Michael: Well, I was going to ask you to do me a favor.
Billy: Sure buddy! Anything for a close colleague!
Michael: I have to take a client to a business lunch and was wondering if you would come along to help me.
Billy: That sounds just perfect! You know that I am a great salesman.
Michael: That's why I am asking you.
Billy: Let me grab my jacket and we can go!