telephone exchange
noun [ C ] uk/ˈtel.ɪ.fəʊn ɪksˌtʃeɪndʒ/ us/ˈtel.ə.foʊn ɪksˌtʃeɪndʒ/
电话交换局，电话交换台
the building that contains the equipment for connecting phone calls
See also: exchange noun
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。