1·Working with loud machinery can cause tinnitus or noise induced hearing loss.
使用噪声大的机器工作会导致耳鸣或噪音性失聪。
2·Loud noise contributes to presbycusis and tinnitus.
强烈的噪音会导致老年性耳聋和耳鸣。
3·However, there are a number of other causes of tinnitus.
不过，有一些其他原因造成的耳鸣。
4·Nearly all the causes of tinnitus are benign, and it is most commonly associated with old age.
几乎所有的原因耳鸣是良性的，这是最常见的与老龄有关。
5·Rocky: Hearing experts say that if young people listen to loud music on MP3 players for extended periods of time, they may suffer hearing loss and tinnitus by the time they're thirty.
听力专家们指出，如果年轻人长时间地从MP3播放器中高分倍地收听音乐的话，那么他们会在三十岁的时候出现听力衰退和耳鸣的现象。