Press the buzzer when you want to talk.
你想讲话的
候就按蜂鸣
。
；蜂群（buzzer的复数）Press the buzzer when you want to talk.
你想讲话的候就按蜂鸣。
We pressed the buzzer in our cabin and a steward arrived instantly.
我们按了客舱的呼
, 
个乘务员马上
了。
The buzzer went off at eight o’clock.
蜂鸣在8点
了。
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