The screenname variable is the user's screen name, and message is the IM content as a string.

screenname 变量是用户的屏幕名，message 是 IM 内容，其类型为字符串。

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Administrators can control which specific events to log and can determine whether or not to log the content of the IM message.

管理员可以控制要记录哪些特定事件，并可以确定是否记录IM消息的内容。

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It combines so many features (IM, social networking, e-commerce, videos, etc) that no one has to jump out of Weibo-world to access other content.

融合了如此多的功能，任何内容的访问都无需离开微博的世界。

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Corporate versions of popular consumer IM software let employees send instant messages safely from behind company firewalls, handle archiving and screen for content.

FORBES: Instant Headache