Mot-clefs : 即時(shí)(shí)通訊____，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通__________________，龍笛即時(shí)(shí)通___________________，視頻會(huì)議_________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)_________，金笛短信