Tetragonal
a. 四角形的
🗣️ 情景例句
It's too soon to know for certain.
现在还太早， 不知道确切情况 。
Today is Monday.
今天星期一。
A man who had broken his right leg was taken to hospital a few weeks before Christmas.
圣诞节前几周，某人摔断了右腿被送进医院。