英 ['meɡəfəʊn] 美 ['meɡəfoʊn]
- n. 扩音器
- v. (用扩音器)传达
a cone-shaped acoustic device held to the mouth to intensify and direct the human voice
- He often speaks in public with a megaphone.
- The mayor addressed the stirred crowd with a megaphone.
- The conference hall was installed with radio set and megaphone.