Mot-clefs : 即時(shí)(shí)(shí)通訊__________________，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通______________，龍笛即時(shí)(shí)(shí)通____________，視頻會(huì)(huì)(huì)議___________________，集成開(kāi)(kāi)發(fā)(fā)(fā)(fā)(fā)(fā)(fā)____________，金笛短信