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