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work at the switchboard
work at the switchboard 表示在总机岗位上工作；switchboard 前通常用 the。
She works at the switchboard from nine to five.
她从九点到五点在总机工作。
电话总机；交换台
switchboards — plural of switchboard
先理解核心含义，再看它在真实句子里的用法。
电话总机；交换台
telephone central where circuits are completed with patchcords
She works at the switchboard from nine to five.
她从九点到五点在总机工作。
用于将电话呼叫转接至目标接收方的电子面板。
The electronic panel that is used to direct telephone calls to the desired recipient.
用塞绳接通电路的电话总机
telephone central where circuits are completed with patchcords
将电力分配到多个负载的大型配电设备。
A large piece of power-distribution equipment that directs electricity to multiple loads.
The hotel's old switchboard could only connect a few calls at a time.
这家酒店的老式交换台一次只能接通几通电话。
She worked at the telephone company's switchboard for twenty years.
她在电话公司的交换台工作了二十年。
Please ask the switchboard to connect you to the manager's office.
请让总机帮你接通经理办公室。
work at the switchboard 表示在总机岗位上工作；switchboard 前通常用 the。
She works at the switchboard from nine to five.
她从九点到五点在总机工作。
switchboard 作主语时，常与 connect、handle 等及物动词搭配。
The switchboard connected all the calls without delay.
总机把所有电话都及时接通了。
on the switchboard 可指在交换台面板上，也可表示处于接线状态。
The buttons on the switchboard are clearly labeled.
总机上的按钮都有清晰标注。
Not this
There are two switchboard in the office.
Use this
There are two switchboards in the office.
switchboard 是可数名词，复数形式须加 -s；two switchboards 才能表达“两个交换台”。
Not this
Please plug the kettle into the switchboard.
Use this
Please plug the kettle into the power strip.
switchboard 指电话交换台或配电盘，不指多孔电源插线板；此处应使用 power strip。
Not this
She works in the switchboard.
Use this
She works at the switchboard.
表示“在交换台工作”时，固定搭配是 at the switchboard；in the switchboard 会让人误以为她人在设备内部。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
电话总机接线员
She worked as a switchboard operator for twenty years.
她当了二十年电话总机接线员。
电话交换台
The hotel's telephone switchboard was old but reliable.
这家旅馆的电话交换台虽然老旧，但很可靠。
人工交换台
In the 1960s, most calls went through a manual switchboard.
在20世纪60年代，大多数电话都要经过人工交换台。
配电盘
The electrical switchboard distributes power to the whole building.
配电盘向整栋大楼供电。
总机室
The switchboard room was staffed around the clock.
总机室全天有人值班。
（因大量来电而）使电话总机应接不暇
After the show aired, listeners lit up the switchboard with complaints.
节目播出后，听众纷纷打来电话投诉，让总机应接不暇。
打爆电话总机，使电话线路阻塞
Fans jammed the switchboard when tickets went on sale.
门票开售时，粉丝们打爆了总机。
Use switchboards naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
switch（开关）+ board（板）→ 接线总机就是一块布满开关的板子，接线员把插头插到对应孔里接通电话。
语域：neutral 常见场景：telephone exchange、hotel reception、corporate office 该词指电话交换台、总机，通常用于技术说明、历史叙述或电信机房、酒店前台等工作场景，属于中性书面用词；在现代日常口语中不太常见。
与 switchboard 的 -board 部分押韵的是 board、blackboard、keyboard、billboard，都以 /bɔrd/ 结尾。switch 只与开头 /swɪtʃ/ 相同，不是整词韵脚。cupboard 拼写含 -board，但读作 /ˈkʌbərd/，注意不要按拼写读成 /bɔrd/。
Dictionary facts from ECDICT, WIKTIONARY.