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
Let's go to your favorite restaurant to commemorate this occasion.
我们去你最喜欢的餐馆来纪念这次活动？
Old wood is best to burn,old book to read.
老柴好烧，老书宜读。
There are even stories of half-trained elephant calves who have refused to feed and pined to death when by some unavoidable circumstance they have been deprived of their own trainer.
训练了一半的小象，由于不可避免的情况与他们的主人分离后，竟拒绝吃食，消瘦至死。