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
Is this the bus that goes by the mall?
这班公共汽车经过商业街吗？
When I was informed of the announcement of my nomination.
当获知我已被提名时。
Life on a desert island is wretched.
认为荒岛生活很可怕，