Convex polygon
出国 Abroad凸多边形
🧩 词语组成解析
convex
['kɔn'veks]
adj. 凸的，凸面的;凸状;凸形;
polygon
['pɔligən]
n. 多边形，多角形;龟裂状;
🗣️ 情景例句
We couldn't afford it.
我们当时不够钱。
To hurry home to his wife
赶回家去见娇妻
For our purposes, we are concerned only with one kind of cost----
就我们的目的而言，我们只关心一种费用-