Blastodisk
[医] 胚盘, 胚层
🗣️ 情景例句
Don't worry. You'll get used to it in no time.
别担心，你会很快习惯的。
He works best who knows his trade.
内行的人做他的事一定会做得最好。
Though he is young, he knows a lot.
尽管小，他懂得多。