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