Proembryonic
原胚的, 胚前的
🗣️ 情景例句
I just can't understand
我就不懂
A fault confessed is half redressed.
承认错误，等于改正一半。
My parents used to live in South America and I used to fly there from Europe in the holidays.
我的父母曾经住在南美洲，所以假期里我常从欧洲乘飞机到他们那里。