Concave polygon
n. 凹多边形
🧩 词语组成解析
concave
['kɔn'keiv]
n. 凹面，成凹形;
adj. 凹的;
vt. 使成凹形;
polygon
['pɔligən]
n. 多边形，多角形;龟裂状;
🗣️ 情景例句
I'm in the mood for soft serve ice cream.
我想吃现装雪糕。
I think it's going to be too long.
我认为它将太长。
Our knowledge grows and the universe develops.
我们的认识在增长，宇宙也在发展。