几年前,美国普林斯顿大学的音乐史教授皮特听完一场摇滚音乐会后,患上了耳鸣和失眠,4%的听力受到损伤。于是,皮特一怒之下将乐队告上了法庭,引起美国社会广泛关注。1998年,美国医疗协会杂志公布的一项调查结果显示,在接受调查的6～19岁青少年中,15%的人有听力受损症状。专家惊呼,美国人比预想的提前了20年开始变聋,听力受损的青少年越来越多,许多40多岁的人听力状况 A few years ago, Pitt, a professor of music history at Princeton University in the United States, had tinnitus and insomnia after listening to a rock concert, leaving 4% of his hearing impaired. As a result, Pete angrily put the band to court, causing widespread concern in American society. In 1998, a survey published by the Journal of the American Medical Association showed that 15% of the 6-19 year olds surveyed had hearing loss symptoms. Experts exclaimed that Americans began to deaf themselves 20 years earlier than expected and that more and more hearing-impaired adolescents were hearing many people in their 40s