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
I am looking for a necklace with a matching pair of earrings.
我想找一条项链和一副跟它相配的耳环。
I went to bed at 11:30 p.m.
我在晚上11:30点睡觉了。
The curtain went up on the final act of the play and revealed the aristocrat sitting alone behind bars in his dark cell.
大幕拉开，最后一幕戏开演，贵族独自一人坐在铁窗后阴暗的牢房里。