Blastulation
囊胚形成
🗣️ 情景例句
Would you please account for these problems?
请你谈谈这些问题，好吗？
Not use hiding your heads in the sand, folks.
各位，逃避现实是没有用的。
Yes, that's a good idea. But I have another difficulty. My written English isn't very good either.
是的，这主意不错。但我还有另外一个难题。我的书面英语也不好。