Mot-clefs : 即時(shí)通訊______________，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通_________，龍笛即時(shí)通________________________，視頻會(huì)議_________________________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)__________________，金笛短信