Press the buzzer when you want to talk.
你想讲话的时候就按

。


;嗡嗡作声的东西;信号手Press the buzzer when you want to talk.
你想讲话的时候就按

。
The buzzer went off at eight o’clock.


在8点钟时
了。
We pressed the buzzer in our cabin and a steward arrived instantly.
我们按了客舱的呼叫
, 一个乘务员马上来了。
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