megaphones
n. 话筒；喊话筒（megaphone 复数）
v. 用喇叭筒说；广泛宣传（megaphone 的第三人称单数）
例句
The conference hall was installed with radio sets and megaphones.
会场里设置了收音机和扩音器。
《新英汉大辞典》
But African leaders are unlikely to get out their megaphones.
但非洲领导人还不可能摘除他们的扩音器。
Blogs have enabled economists to turn their microphones into megaphones.
博客使得经济学家们把他们的麦克风变成了扩音器。
