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hearing-aids的英文翻译是什么意思，词典释义与在线翻译：
英英释义
名词 hearing aid:
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an electronic device that amplifies sound and is worn to compensate for poor hearing
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a conical acoustic device formerly used to direct sound to the ear of a hearing-impaired person
hearing-aids的用法和样例：
例句
- The hearing aids are operated from batteries.
助听器用电池供电。 - A hearing aid helps to overcome defects in hearing.
助听器有助于克服听觉缺陷。
