Palavra chave: 即時(shí)通訊______________，企業(yè)(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)(fā)_____________，金笛短信