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Noun:
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a cone-shaped acoustic device held to the mouth to intensify and direct the human voice
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用作名詞 (n.)
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He often speaks in public with a megaphone.
他長用擴音器當面大眾的演說。
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The mayor addressed the stirred crowd with a megaphone.
鎮長用擴音器向興奮的客戶領導講話。
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The conference hall was installed with radio set and megaphone.
場所里設備了錄音機和擴音器。
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海詞詞典下載,十八年高端品牌