Palavra chave: 即時(shí)(shí)通訊____，企業(yè)(yè)(yè)(yè)(yè)(yè)溝通________________，龍笛即時(shí)(shí)通______________，視頻會議_______________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)______，金笛短信