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