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
Yes. Here you are.
好的，都在这儿。
I hope he will be able to find it.
我希望他会找到它。
She was injured badly in the accident.
她在这次意外中受到重伤。