Make sure your hearing aid, wheelchair or eyeglasses are next to your bed.

确保你的助听器、轮椅或眼镜放在床边。

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A hearing aid helps to overcome defects in hearing.

助听器有助于克服听觉缺陷。

《新英汉大辞典》

The AARP doesn't need a hearing aid manufacturer to function.

AARP的运营不需要一个助听器的生产商。

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Cochlear implants, so that's the same kind of function as a hearing aid, to improve hearing, but using a different mechanism.

人工耳蜗移植术,人工耳蜗与助听器同作用相同,都可以改善听力,只是两者原理不同

耶鲁公开课 - 生物医学工程探索课程节选

Mr Roberts already has to attach a hearing aid to a magnetic plate inserted under his skin every morning.

BBC: Thalidomide poses new challenges

The reason most people who needed a test gave for not arranging one was "that they think they might be told they need to wear a hearing aid and do not want to wear one".

BBC: Deaf people 'feel excluded'

She went back to her bedroom for her hearing aid and then trudged down to the hall.

NEWYORKER: Bravado