setup a SyncSource for your addressbook, named 'adrbook'.

建立一个联系簿的同步源，比如“adrbook”。

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NOTE: If you are missig a SyncSource in this list, check your client-configuration on the Server.

注：如果你在列表中缺失某个同步源，请查看在服务端中客户端的配置。

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