social networking sites是什么意思?

social networking sites是什么意思? social networking services是什么意思 "What do you think of social networking sites like Facebook, social networking. social networking websites什么意思 twitter social networking什么意思 location-based social networking 怎么翻译啊? What is a social networking web site? conserved sites是什么意思poorly conserved sites呢? 关于“Social networking” 500字的英文文章, Information technology tools and social networking (信息技术工具和社 are social networking website like facebook,youtube and twit