Mesembryo
[医] 中胚期, 囊胚曲
🗣️ 情景例句
I've been thinking a lot about our responsibilities
我对于我们的职责想了很多
We are sure the contract can be carried out smoothly.
我们确信合同会顺利执行的。
but where had it come from?
但它是从哪儿来的呢？