脸谱用户持有特定身份并大多通过站内消息联系。
Users have identities specific to Facebook and communicate mostly via internal messages.
最基本的是站内消息，公共墙消息或评论，以及即时聊天或即时消息。
The basics are private messages, public wall messages or comments, and live chat or instant messaging.
它们也都有用户名片、站内消息、分享和其他一些内置的用户互动功能。
They all have user profiles, messaging, sharing, and other member interactions built-in.
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