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