google +是一个置于“圈子”的社交网络，在这项服务中，用户可以自行设立联系群组。
Google +, which is built as a social network that USES the idea of "Circles" - user-generated groups of people with whom to communicate.
建立一个群组或爱好者网络，这样可以更好地与现有的或者潜在的客户保持更紧密的联系。
Start a group or a fan page so prospective and current customers can stay in touch.
对群组聊天的需求并不如即时消息那样普遍，在日常工作过程的非正式联系中也不那么有用，但在特定情况下，只有群聊才能发挥作用。
Group chat is slightly less common a need than IM, and is less useful for informal access in your daily workflows. But for certain use cases, only group chat will do.
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