And last March, Apple gave iTunes developers the ability to charge subscription fees through their applications, making iTunes the gateway for an entirely new breed of transaction.
Right before passing the response of the GET request to the service in charge of communicating with the e-mail gateway, we perform two transformations on the XML order entity
在将GET请求的响应发送给负责与email网关进行通信的服务前，我们对XML订单实体进行了两次转换
3
But the prices Gateway can charge for its computers have changed a lot too: They're dramatically lower, the result of a brutal price war initiated by competitor Dell.