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loudspeaker

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n.扩音器,喇叭
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loudspeaker为六级词汇

loudspeaker


n[C]

a piece of equipment used to make sounds louder
from/over/through a loudspeaker
 The voice over the loudspeaker (=using the loudspeaker) said the flight was delayed.
a speaker
1. We heard the news over the loudspeaker.
    我们听见扩音器里广播了这一消息。

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