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(huì)議_______________________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)___，金笛短信