hearing aid
US /ˈhɪrɪŋ eɪd/
UK /ˈhɪrɪŋ eɪd/
1.
助听器
a small device that fits in or on the ear, used by partially deaf people to amplify sound
:
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My grandmother uses a hearing aid to hear better.
我奶奶用助听器听得更清楚。
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He had his hearing aid adjusted by an audiologist.
他请听力学家调整了他的助听器。