For countries, the cost of special education and lost employment due to hearing impairment can burden the economy.

对国家来说，特殊教育成本和因听力障碍失去工作状况可能造成经济负担。

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Half of all cases of deafness and hearing impairment are avoidable through prevention, early diagnoses and management.

在所有耳聋和听力障碍病例中，一半的病例可以通过预防、早期诊断和管理得以避免。

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There are two types of hearing impairment, according to which part of the ear is affected.

依受影响的耳道部位不同，有两种类型的听力障碍。

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Knowing a famous person has the same impairment as you can be reassuring, but only in the vague way that hearing of a successful distant relative is reassuring.

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However, some of the medication he was given has left him with a permanent hearing impairment, and he still takes 10 different medications daily, some through a permanent tube in his abdomen, Jennifer said.

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