只有在过去30天内使用任何一个调查所涉及的网站，这个参与者才能被认为是社交网络的使用者。

To be considered a social network user, the participant had to use one of the sites in question in the past 30 days.

youdao

除非你所有的用户都是参与者（迄今罕见），否则社交网络存在着风险，那就是让用户子集驱动你的产品路线。

Unless all your users are participants (rare so far), social networks present the risk of allowing a subset of users to drive your roadmap.

youdao

“社交变色龙”指在某个社会环境中能够通过吸收或模仿其他参与者所遵循的社会准则而进入并融入该环境的人。

A social chameleon is an individual who has the ability to enter social situations and blend in by adopting or mimicking the social norms displayed by the other participants in the situation.

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