Mot-clefs : 即時(shí)通訊_____________________，企業(yè)(yè)(yè)(yè)(yè)(yè)溝通____________________，龍笛即時(shí)通_________________，視頻會議_____________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)___________，金笛短信