hearing aid
英英释义
Noun- an electronic device that amplifies sound and is worn to compensate for poor hearing
- a conical acoustic device formerly used to direct sound to the ear of a hearing-impaired person
例句
用作名词(n.)- A hearing aid helps to overcome defects in hearing.助听器有助于克服听觉缺陷。
- She adjusted the power on her hearing aid.她调了调助听器的电流量。
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