Saccus omphaloentericus
[医] 卵黄囊
🧩 词语组成解析
囊
🗣️ 情景例句
Thanks. And what about your family?
谢谢。那你的家庭呢
I'll take care of it.
我来办这件事。
Although we can't see these atoms, they really do exist.
虽然我们看不见原子，但它们的确存在。