Concave polyhedron
凹多面体
🧩 词语组成解析
concave
['kɔn'keiv]
n. 凹面，成凹形;
adj. 凹的;
vt. 使成凹形;
n. 多面体
🗣️ 情景例句
He takes things too seriously.
他看待事情太认真了。
Honest men marry soon,wise men not at all.
老实的人早成婚，聪明的人不结婚。
He soon made a name for himself and came to be known to the Italians as Giovanni Acuto.
很快就出了名。意大利人叫他乔凡尼。 阿库托。