These users know their audience intimately (usually a much smaller social network) and can use this knowledge to avoid spending time adding features they know not to be intrinsic.

这些用户与其受众有较为密切的关系(通常是一个小得多的社会网络)，能够使用此知识来避免将时间浪费在明确不需要的功能上。

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Apple made the case for a game-based social network more difficult by adding new features to its Game Center service.

WSJ: Turf War Erupts in Red-Hot Mobile Videogames

Fox has been quietly busy over the last few days, unveiling plans for a 24-hour sports network that may be the biggest challenger to ESPN's throne, and adding new features to its mobile apps.

ENGADGET