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
I would like to make an appointment for tomorrow morning please.
我想预约明天早上见面。
Could you hold the door open, please?
请让门继续开着好不好？
This is one example of a part-time job leading to greater things.
这是兼职工作通向更大事业的一个例子。