Keyword: 即時通訊________________________，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通__________________，龍笛即時通___________________，視頻會議__________________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)______________________，金笛短信