Mot-clefs : 即時(shí)通訊_________________，企業(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)_______，金笛短信