() a type of computer system in which the computer responds immediately to a request made by a user. Each request is a transaction. 事务处理（对用户的要求快速作出反应的一种计算机系统）➡batch processing
() a method of dealing with a piece of business 交易处理◆Secure online transaction processing enables merchants to accept payment by credit card. 安全的网上交易处理使商家可以接受信用卡付款。