customer 和buyer的区别

customer 是顾客的意思，而buyer则是买家的意思，区别可以从以下例子看出：

He was a buyer who usually come to our company, now he becomes our loyal customer, and we become closed friends. 他是一个经常来我们公司的采购员，现在他成了我们的忠实客户，我们成了密友。