hearing aid 详细解释
hearing aid
n. 助听器
词形变化
名词: hearer | 动词过去式: heard | 动词过去分词: heard | 动词现在分词: hearing | 动词第三人称单数: hears |
英英释义
名词 hearing aid:
an electronic device that amplifies sound and is worn to compensate for poor hearing
同义词：deaf-aid
a conical acoustic device formerly used to direct sound to the ear of a hearing-impaired person
同义词：ear trumpet
补充
hearing aidhearing aidn.1.助听器热门单词推荐
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