Mot-clefs : 即時(shí)(shí)通訊___________，企業(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)___，金笛短信