Instant message, which opens up a Facebook application IM client.

即时消息，会打开一个Facebook应用的即时消息客户端。

youdao

Just mouse over a remote video window and press the "IM" icon to send the user an instant message.

鼠标悬浮在远程视频窗，按“即时通讯”标给对方发送即时信息。

youdao

Rather, they constantly interact with each other, mostly by instant message (IM).

相反，他们需要不断相互配合，主要是通过及时通讯工具联系（简称IM）。

youdao

You IM (instant message), you blog, you take pictures, you publish, you podcast, you transact, you distance learn, you telemedicine.

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