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