1878, coined (perhaps by Thomas Edison, who invented it) from Greek megas "great" (see mega-) + phone "voice" (see fame (n.)). Related: Megaphonic. In Greek, megalophonia meant "grandiloquence," megalophonos "loud-voiced."
megaphone 双语例句
1. A megaphone boomed out, "This is the police."
扩音器响了起来：“我们是警察。”
来自柯林斯例句
2. Making monetary policy by megaphone never leads to good results.
夸夸其谈的货币政策决不会取得效果.
来自互联网
3. He hawks with a megaphone, saving a lot of effort.