扩音 kuòyīn to amplify Origin Definitions Defs Strokes Stroke Words Sentences Sents 扩音器 kuòyīnqì amplifier / loudspeaker / megaphone a device used to amplify sound, such as a megaphone, loudspeaker, or audio amplifier扩音机 kuòyīnjī amplifier an electronic device that increases the power of an audio signal, often used in wired broadcasting