Palavra chave: 即時(shí)通訊___________，企業(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)________，金笛短信