Allantoic sac
[医] 尿膜囊
🧩 词语组成解析
a. [动]尿囊的,尿囊内的,有尿囊的
sac
[sæk]
n. （动植物组织中的）囊，液囊;
abbr. 缩写 = (US) Strategic Air Command 战略空军司令部。;
🗣️ 情景例句
You have to appreciate the work that has gone into this piece of art.
你不得不佩服他为完成这件作品所倾注的心血。
What kind of hero is that?
这样算什么英雄好汉？
It was necessary first to arrive at that degree of sophistication where we no longer set our own belief against ourneighbour's superstition.
不用自己的信仰去反对我们邻居的迷信。