Palavra chave: 即時(shí)通訊___________，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通__________________，龍笛即時(shí)通______________，移動(dòng)辦公______________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)