a piece of equipment, used especially in the past, for directing all the phone calls made to and fro

中文解释

电话总机，电话交换台 Tearful fans jammed the radio station\'s switchboard after the singer\'s death (= so many people called that all the phones were busy). 歌手去世之后，伤心哭泣的歌迷纷纷打电话到电台，使总机忙得不可开交。