Note that some delivery protocols for example , simple mail transfer protocol , or smtp do not provide guaranteed delivery of messages ; however , the notification services platform has retry logic that enables an application to resend messages to attempt delivery again 请注意，某些传递协议[例如，简单邮件传输协议( smtp ) ]不能提供保证安全的消息传递，而notification services平台具有重试逻辑，使应用程序能够重新发送消息以再次尝试进行传递。
“ chelsea would think they only need a couple more wins , but united will think it is not over yet , ” hughes , whose team play chelsea at ewood park on may 2 , said . “ sir alex has had opportunities in the past to affect opposing managers and people have accepted that he has had an impact , so i ' m sure he will try it again “切尔西会想他们只需要几场胜利，但是曼联会想那还没完呢， ”休斯的球队5月2号会在埃伍德公园迎战蓝军，他说： “弗格森爵士过去有机会影响敌对的经理，人们认为他动力十足，所以我肯定他会再次尝试的。
