Mot-clefs : 即時(shí)(shí)通訊_________，企業(yè)(yè)(yè)(yè)(yè)(yè)溝通__________________，龍笛即時(shí)(shí)通________，視頻會議____________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)__________，金笛短信