Unformulated
a. 未用公式表示的,未系统地阐述的
🗣️ 情景例句
What's that?
什么问题？
I'd like to make a reservation to Los Angeles for next Monday.
我想预定一张下周星期一去洛杉矶的飞机票。
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，