ISDN
noun uk/ˌaɪ.es.diːˈen/ us/ˌaɪ.es.diːˈen/
综合业务数字网,“一线通”(Integrated Services Digital Network的缩写)
abbreviation for Integrated Services Digital Network: a system for sending voice, video, and information over phone wires very quickly
英汉双解词典收录81607条英汉双解翻译词条,基本涵盖了全部常用单词的读音、翻译及用法,是英语学习的有利工具。