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 know you didn't expect to have me around,
我知道你没有预期我出现在你身边，
I refuse to believe it!
我不相信那回事！
Annie considered this was just the kind of demanding job she wanted.
安妮认为，这正是她想要的难度很大的工作。