Caval fold
[医] (下)腔静脉褶(胚胎)
🧩 词语组成解析
[医] 腔静脉的
fold
[fold]
vt. 折叠;合拢;抱住;笼罩;
vi. 折叠起来;彻底失败;
n. 折痕;信徒;羊栏;（起伏地的）凹处，洼;
🗣️ 情景例句
Sam, would you come in, please?
Sam，请进来一下， 好吗？
Such data is confidential.
这样的资料为机密资料。
But some people don't want good farmland to be built on.
但有些人不愿意把好的农田用来建造厂房。