Mot-clefs : 即時(shí)(shí)通訊__________________________，企業(yè)(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)(fā)________________，金笛短信