Customer 顾客
A customer (sometimes known as a client, buyer, or purchaser) is the recipient of a Good or a service, or a product, or an idea, obtained from a seller, vendor, or supplier via a financial transaction or exchange for money or some other valuable consideration. Etymologically, a client is someone merely inclined to do business, whereas a purchaser procures goods or services on occasion but a customer customarily or habitually engages in transactions. This distinction is merely historic. Today customers are generally categorized into two types: