Concave polygon
n. 凹多邊形
?? 詞語(yǔ)組成解析
concave
['k?n'keiv]
n. 凹面，成凹形;
adj. 凹的;
vt. 使成凹形;
polygon
['p?lig?n]
n. 多邊形，多角形;龜裂狀;
??? 情景例句
Well, Marilyn and Richard called.
好啦 Marilyn和Richard打電話來(lái)了
Lookers-on see more than players.
旁觀者清。
We would lay less stress on 'facts and figures'and more on a good memory,
人們不會(huì)再重視"資料和數(shù)據(jù)"，而靠好記性、