translation.en: Ten million Americans already have this for one reason or another, but really worryingly, 16 percent -- roughly one in six -- of American teenagers suffer from noise-induced hearing disorder as a result of headphone abuse.
translation.zh: 1000万美国人已经因为各种原因换上了此症， 但最让人担心的是， 其中16% 就是约每六个青少年中就有一个 因为滥用耳机 患上了噪音导致的听觉紊乱。