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