hearing aid

US /ˈhɪrɪŋ eɪd/
UK /ˈhɪrɪŋ eɪd/
"hearing aid" picture
1.

助听器

a small device that fits in or on the ear, used by partially deaf people to amplify sound

:
My grandmother uses a hearing aid to hear better.
我奶奶用助听器听得更清楚。
He had his hearing aid adjusted by an audiologist.
他请听力学家调整了他的助听器