hearing aid
US /ˈhɪrɪŋ eɪd/
UK /ˈhɪrɪŋ eɪd/

名词
1.
助听器
a small device that fits in or on the ear, used by partially deaf people to amplify sound
示例:
•
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。
在 Lingoland 学习这个单词