现代群体一项最重要的功能就是决策，我们的家庭，公司甚至我们的国家的命运都维系在集体地做出正确的决策的能力之上。

One of the most important functions of modern groups is decision-making. The fates of our families, our corporations, even our nations, hang on our collective ability to make good decisions.

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它也有很丰富的功能，例如集体聊天，照片信息和音频聊天。

It’s also rich with features such as group chat, photo messaging and audio chatting. ($10, download)

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比如说，蓝牙文件共享功能曾经在摩托罗拉V710上被禁止，这款手机与2005年发布，这件事情导致了集体诉讼。

For example, file-sharing with Bluetooth was disabled on the Motorola v710, a phone released in 2005, which led to a class-action lawsuit.

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