Blaastula
[医] 囊胚, 囊胚泡
🗣️ 情景例句
Sir, this offer will expire this week.
先生，这次特价这个礼拜就结束了。
Life is half spent before we know what it is.
等到认识人生，已经一半过去了。
How do you want your steak?
你的牛排要几分熟？