bull·horn
noun/ˈbʊlhɔːn/
/ˈbʊlhɔːrn/
(North American English) (British English loudhailer)
(also megaphone British and North American English)
- a device for making your voice sound louder, that is wider at one end, like a cone, and is often used at outside events
电子喇叭；扩音器