Caval valves
[医] 下腔静脉瓣
🧩 词语组成解析
[医] 腔静脉的
n. 阀门；真空管；瓣膜（valve的复数）
🗣️ 情景例句
And they don't ask a married couple with no children Why don't you have any children?.
他们也不会问结了婚没有孩子的夫妇“你们为什么不要孩子？”。
Action speak louder than words.
事实胜于雄辩。
I gave up in despair.
我无可奈何，只好罢休。