Noise has damaged the hearing of about 10 million Americans, many of them Baby Boomers who listened to hard rock with the volume turned up as far as possible.
噪音已经伤害了一千万美国人的听力。他们许多是婴儿潮中出生的人经常听摇滚而且总是把声音开得很大。
2
If you've ever been to a rock gig, you'll probably recognise this screeching noise.
如果你曾去过摇滚乐的演唱会，你可能知道这种尖锐的杂音，这就是反馈的杂音。
3
We need to make some noise if we want to be a rock band.