Quadrilateralness
n. 四边形 (quadrilateral的变形)
🗣️ 情景例句
Three things?
三件事？
We need them urgently.
我们急需这些资料。
The ideal to be aimed at was to devise an instrument that could record with a pen on paper,
当地震发生时，它能用笔在纸上记录下