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
I want an expensive luxury car.
我想买一辆昂贵的豪华汽车。
I was born anAmerican; I live an American; I shall die an American.
我生下来是美国人，活着是美国人，死时也是美国人。
Yes, please. That would be kind of you.
是啊。你真好！