... 助听器(听胎心用) Ear trumpets 助听器(听胎心用) Ear trumpets 孕妇托腹带 Maternity belts ...
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ear-trumpets 耳塞
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同义词: hearing aid
以上来源于: WordNet
N a trumpet-shaped instrument that amplifies sounds and is held to the ear: an old form of hearing aid (旧)助听筒
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