名词
中文翻译：电喇叭
同义词：
['electronic megaphone', 'loudspeaker']
例句：
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1.The police used an electric megaphone to issue a warning during the protest.
警方在抗议期间使用了一个电喇叭来发出警告。
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2. The band played their music through an electric megaphone for the audience.
乐队通过一个电喇叭向观众演奏他们的音乐。
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3.The speaker used an electric megaphone to make his announcements clear and loud.
发言人使用了一个电喇叭来使他的公告清晰而响亮。