Blastulation
囊胚形成
🗣️ 情景例句
It's the first thing people will see when they come in.
这是人们走进来所看到的第一 件东西。
Thank you.
谢谢你。
Debbie Hart is going to swim across the English Channel tomorrow.
黛比。哈特准备明天横渡英吉利海峡。