(1) (Point of Presence, also Post Office Protocol)電話接入網[站]點；郵局協議,用於電子郵件的接收
(2) =Printing Out Paper攝(利用光照直接顯影的)印相紙;
(3) Process Optimization Program 最佳操作程序
(4)(=popular)流行
(5)砰地壹聲響；劈啪地響