buzzer call

例句：

1. 1. The buzzer call is for the first bell ringing.
   蜂鸣器呼叫是为了第一个铃铛响起。
2. 2.The beeper call was received by all the employees.
   蜂鸣器呼叫被所有员工接收到。
3. 3. The beeper call was used to alert everyone of an emergency.
   蜂鸣器呼叫用于紧急情况下提醒所有人。