Mot-clefs : 即時(shí)(shí)通訊_______________，企業(yè)(yè)(yè)(yè)(yè)(yè)溝通_______，龍笛即時(shí)(shí)通____________，視頻會(huì)議______________________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)__________，金笛短信