Quadratics
n. [数]二次方程式论
🗣️ 情景例句
I really understand, Marilyn.
我真的能理解， Marilyn。
What is th boarding time?
何时登机呢？
it is quite reasonable to regard the sea floor as the basic form of the crust of the earth,
因此完全有理由把海床看作地壳的基本模壳，