Hearing aid
01
助听器, 听力辅助设备
a small electronic device that is worn in or behind the ear and is specifically designed to amplify inaudible sounds to help a person with hearing loss
02
助听喇叭, 圆锥形听觉辅助设备
a conical acoustic device formerly used to direct sound to the ear of a hearing-impaired person
语法信息
有生性状态
无生命
形态构成
复合词
可数
复数形式
hearing aids
