Palavra chave: 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)_____________，金笛短信