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