说明：  本文描述了TrackBack, 一个点对点通信和网站间互相通告的框架. TrackBack的中心思想是TrackBack ping的概念, 从本质上讲，TrackBack ping是一个请求，通告“资源A与资源B相关，或有链接到资源B.” 一个TrackBack “资源” 用一个TrackBack Ping URL表示, 这是一个标准的URI.
(This paper describes a TrackBack. a point-to-point communication between each other and websites circular framework. TrackBack central idea is TrackB disappear ping concept, in essence, is a TrackBack ping request, circular "resource A and B related resources, or link to resources B. "a TrackBack" resources "with a TrackBack Pin g URL, it is a standard URI.)