回答
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Hearing loss
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We lose our hearing from ageing and trauma.
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Our hearing gets worse from ageing and trauma.
難聴 = hearing loss
[外傷や老化によって聴力が低下してしまうことです]と言いたいと下の英文がいいと思います
We lose our hearing from ageing and trauma.
Our hearing gets worse from ageing and trauma.
外傷 = trauma
老化 = ageing
聴力が低下してしまう = lose hearing / hearing gets worse
ご参考になれば幸いです