megaphones

n.

扩音器( megaphone的名词复数 )；

1. He often speaks in public with a megaphone.
   他常用扩音器当着大众演说。
2. The mayor addressed the stirred crowd with a megaphone.
   市长用扩音器向激动的群众讲话。
3. The conference hall was installed with radio set and megaphone.
   会场里设置了收音机和扩音器。

Monied megaphones drown debate
Decency and megaphones in the rice fields
12. Transforming Mouths into Megaphones
Urban frogs use drains as mating megaphones
Transatlantic Appeal: Put Away the Megaphones
Megaphones to the Internet and the World: The Role of Blogs in Corporate Communications
Milestones and Megaphones: Improving, Measuring, and Marketing ETD Success
‘Ruup’ Forest Megaphones, Pähni Nature Center, Võru County (Estonia)
From Twitter to Megaphones: Seven Lessons Learned about Public Health Crisis Communication
Critics or megaphones? News coverage during the parliamentary campaigns in Botswana 1994 and Zimbabwe 1995