A study a few years ago found early signs of hearing loss in more than 12 percent of 6 - to 9-year-olds.

几年前的另一项研究发现，出现听力受损早期迹象的人中6到9岁的少年儿童占12%以上。

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Approximately 2 percent of children, under 18 years of age, have some level of hearing loss.

大约2%的小于18岁的孩子有一些程度上的听力损失。

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Of those people who recover, 30-40 percent suffer hearing loss and liver damage.

而对于恢复的病人来说，30 - 40%的人会丧失听力并造成肝脏损伤。

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Overall, nearly 700 people, or 13.2 percent of the sample, had noise-induced hearing loss in Djalilian's study.

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