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