Chorionic sac
[医] 绒毛膜囊
🧩 词语组成解析
[医] 绒[毛]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
You really need to eat more; you're too skinny.
你太瘦了，真得多吃点。
Please proceed with your presentation.
请开始你的简报。
The first thing I saw when I entered the art gallery was a notice which said:
走进展厅首先看到的是一张告示，上面写着