Concave function
[计] 凹函数
🧩 词语组成解析
concave
['kɔn'keiv]
n. 凹面，成凹形;
adj. 凹的;
vt. 使成凹形;
🗣️ 情景例句
Besides Chinese New Year, what are the other festivals according to the Lunar Calendar?
农历新年以外还有什么节日？
I'm crazy about shooting.
我热衷于射击运动。
But it's going to be a very tiring five years for me.
不过对我来说，这将是非常累人的五年。