Mesectoderm
中外胚层
🗣️ 情景例句
My name is Lu Wei. I am beside Beijing Hotel on Changan Street.
我叫陆伟，在长安街北京饭店旁边。
We know that you are leading exporters of coal and you can provide the quantity we need.
我们知道贵方是主要煤炭出口商，能满足我们的需求量。
I concluded that they were simply shy of strangers.
我认为这不过是他们在陌生人面前表现出的害羞。