Ectosac
[医] 外膜, 外囊(卵)
🗣️ 情景例句
Do you have any other plans for the day?
那么你今天有别的事吗？
I meet the boy whose aunt is a stenographer.
我遇到那个男孩的姑妈是速记员。
Is it your brother?
是你弟弟？