Eustachian valves
[医] 下腔静脉瓣
🧩 词语组成解析
[医] 咽鼓管
n. 阀门；真空管；瓣膜（valve的复数）
🗣️ 情景例句
Exactly.
完全正确。
To read without reflection is like eating without digestion.
学而不思，犹如食而不化。
They mustn't look.
他们不准看。