Deafness occurs most commonly when tiny hair cells inside the cochlea are damaged as a result of a genetic defect, infection, loud noise or aging.
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美
- 耳聋最常见的起因,是由于基因缺陷、感染、吵杂的噪音或老化等因素,让耳蜗内部细微的毛细胞受损所造成。