1·In this case proxy builder, while getting service information about particular service, subscribes to the updates of this service information, which are published to it by a registry service.
这种情况下，在获取某个服务信息的同时，代理创建器订阅服务信息的更新，而这些信息由注册中心服务发布。
2·After the first subscriber subscribes, when messages are published to the topic, the publication point adds the messages to the topic space until the last subscriber unsubscribes.
第一个订户订阅后，发布点会在消息发布到主题时将其添加到主题空间，直到最后一个订户取消订阅为止。
3·In essence, the publisher mediation re-publishes the topic to which it subscribes, with the potential for logging and transformation between the the publisher and subscribers.
其实，发布者会将主题重新发布到订阅该主题的订阅者，并有可能在发布者和订阅者之间进行日志记录和转换。
4·Notice that you had to re-subscribe to the Management policy group because as soon as an organization subscribes to a policy group, it does not inherit any of those from its ancestors.
注意，您必须重新订阅“管理策略组”，因为一旦组织订阅了策略组，它就不再继承来自其祖先的任何相同策略组。
5·A poorly planned topic space often results in client over-subscription, in which the client subscribes to a broader topic space than required, and thus receives extraneous messages.
而设计糟糕的主题空间则会导致客户的过度订阅，即客户订阅了超出自身所需的主题空间，继而会收到很多无关的消息。