放大 扩大英释
At the Sheffield arena, the speakers were magnified ten times on a giant screen..在谢菲尔德体育馆，演讲者在一个巨大的屏幕上被放大了十倍。
A public address system magnifies all the little noises and coughs..扩音系统会放大任何细小的噪音和咳嗽声。
