/'swɪtʃbɔ:d; `swɪtʃ,bɔrd/
n (staff controlling a) central panel with a set of switches for making telephone connections or operating electrical circuits 电话交换台、总机或配电板（工作人员）
*on duty at the switchboard 在电话交换台值班
* Protesting viewers jammed the BBC switchboard. 观众抗议的电话使英国广播公司的总机应接不暇.
* [attrib 作定语] switchboardoperators 交换台接线员.

n[C]
a system used to connect telephone calls in an office building, hotel etc, or the people who operate the system
　switchboard operators
　Hundreds of callers jammed the switchboard trying to win the tickets (=there were too many calls for the switchboard to deal with) .