Blastodermic
胚层的, 胚盘的
🗣️ 情景例句
You know, man's best friend is his dog.
你知道的，类最好的朋友就是狗。
Do you know what the population of Japan is?
你知道日本的人口是多少吗？
There are some armchairs in the room.
客厅里有几把扶手椅。