人工电话

例句：

1. 1. We need to have an emergency plan in place for the event.
   我们需要为这次活动准备一个应急计划。
2. 2. The manual telephone is a device that allows people to communicate over long distances without a phone line.
   手动电话是一种设备，允许人们通过电话线进行远距离通信。
3. 3. The manual telegraph was used during the early days of communication when there were no modern electronic devices.
   手动电报在通信初期使用，当时还没有现代电子设备。