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