商務英語ABC
customer 用在（people by product from the shop or restaurant 在商店或餐廳内買物品的客戶 )一般的客戶
client 用在（委托人，當事人的客戶 買的是無形的商品） people by service from the professional person or company
guest 客人
請便 be my guest
老客戶 regular customer （經常來的客戶）
客戶是上帝 customer is god
