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megaphone

美['meɡəfoʊn] 英['meɡəfəʊn]

n. 扩音器

v. (用扩音器)传达

形容词：megaphonic 副词：megaphonically 过去式：megaphoned 过去分词：megaphoned 现在分词：megaphoning 第三人称单数：megaphones

近义词：loudspeaker，amplifier，bullhorn，loudhailer，mike，pa，public-addresssystem，

Noun

a cone-shaped acoustic device held to the mouth to intensify and direct the human voice

用作名词(n.)

He often speaks in public with a megaphone.他常用扩音器当着大众演说。
The mayor addressed the stirred crowd with a megaphone.市长用扩音器向激动的群众讲话。
The conference hall was installed with radio set and megaphone.会场里设置了收音机和扩音器。

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