Amniotic sac
[医] 羊膜囊, 羊膜
🧩 词语组成解析
a. 羊膜的\\n[医] 羊膜的
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
Mrs. Montefiore told me that
Montefiore太太告诉我
It's nice to be sitting here with you.
在这里陪你坐着是非常愉快的。[动词不定式的进行时]
I'll introduce him to you.
那么，我来介绍你认识。