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