Ectosac
[医] 外膜, 外囊(卵)
🗣️ 情景例句
What do your parents do?
你父母是做什么的？
If you don't take my advice,you'll be sorry.
如果你不接受我的忠告，你将会遗憾的。
My father was shocked.Now we are not allowed to touch it.
我父亲大为吃惊，不许我们再动它。