Mot-clefs : 即時(shí)(shí)通訊_____，企業(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)_____，金笛短信