Allantochorion
[医] 尿囊绒[毛]膜
🗣️ 情景例句
Wouldn't it be a good idea to pick up your room?
你是不是考虑把自己的屋字收拾一下。
Have another piece of cake, please.
请再吃一块蛋糕吧。
It's here. Can you see an orange?
在这儿。你能看见一只橘子吗？