Mot-clefs : 即時(shí)通訊_______________，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通_________________，龍笛即時(shí)通__________，視頻會議_____________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)_________，金笛短信