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