| 单词 | Eustachian tube |
| 释义 | Eustachian tube Eustachian tube /juːˌsteɪ.ʃənˈtjuːb/ aep /-ˈtuːb/ noun [C] SPECIALIZED ► F0 either of the two passages between the middle ear and the back of the nose that open to allow pressure to be kept equal on both sides of the eardrumThesaurus+: ↑The ear |
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