n.扩音机;扩音器;
例句:
1、
2、
President Harding's inaugural address delivered by loud speaker to more than 100,000 people.
超过100,000位听众通过扬声器收听哈丁总统的就职演说.
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3、
A 747 was halfway across the Atlantic when the captain got on the loud speaker.
一架747客机正在跨越大西洋时,喇叭里传来了机长的声音.
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