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  1. Oxford Dictionary

    loudhailer

    • IPA[ˌlaʊdˈheɪlə]

    英式

    • n.
      an electronic device used to amplify the sound of a person's voice so that it can be heard at a distance; a megaphone.

    • noun: loudhailer, plural noun: loudhailers

    • 更多解釋

    loudhailer

    • IPA[ˈloudˌhālər]

    美式

    • n.
      an electronic device used to amplify the sound of a person's voice so that it can be heard ...

    Oxford American Dictionary