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(huì)議______________________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)___________，金笛短信