Mot-clefs : 即時(shí)通訊__________________，企業(yè)(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)(fā)_________________________，手機(jī)(jī)(jī)(jī)端