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
A list of these items and a volunteer form
这些物品的清单和义工申请表格
I'm sorry. Has it been bothering you?
对不起，打扰你了？
You look like a million dollars.
你看上去帅呆了。