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词汇 Eustachian tube
释义
Eustachian tube
noun [ C ] anatomy specialized uk/juːˌsteɪ.ʃən ˈtʃuːb/ us/juːˌsteɪ.ʃən ˈtuːb/
耳咽管;咽鼓管
either of the two passages, located between the middle ear and the back of the nose, that open to allow pressure to be kept equal on both sides of the eardrum
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