Mot-clefs : 即時(shí)通訊________________，企業(yè)(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)(fā)____________，金笛短信