customer（顾客）与consumer（消费者）是两个不太相同的概念.
customer（顾客）着重指商店或公司的具体服务对象,与店主相对应,是客与主的关系.例如：The customer right there is not satisfied with our products.
consumer(消费者）着重指市场上所有已花钱消费的顾客,与经营者相对应,这个词多用于市场研究.例如：The consumers complained about the poor quality of the electronic products.