Palavra chave: 即時(shí)通訊____________________，企業(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)