Mot-clefs : 即時(shí)(shí)(shí)通訊____________________，企業(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)________________，金笛短信