switchboard的词源

英文词源

switchboard (n.)

also switch-board, "device for making interchangeable connections between many circuits," 1867, from switch (n.) + board (n.1).

中文词源

switchboard：交换机，交换台，总机

switch,交换，board,电路板。

该词的英语词源请访问找单词词源英文版：switchboard 词源，switchboard 含义。