Endoblast
n. 内胚层\\n[医] 内胚层
🗣️ 情景例句
I promise not to think about the city.
我保证不再去想城里的事。
I told him to stay till he comes back.
我告诉他留下来等他回来。
Can we substitute in these things?
这几项可以用替代品吗？