Ectoblast
n. 外胚层\\n[医] 外胚层, 外膜
🗣️ 情景例句
Are you through with your work?
你工作做完了吗？
I certainly didn't intend to cause you so much inconvenience.
我当然不打算引起你如此多的不方便。
Yes, I am, thank you.
是的，好些了，谢谢您。