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