Concave point
[计] 凹点
🧩 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
Payments over thirty years?
三十年分期付款吗？
Is it convenient to you if I come at 6 p.m.?
如果我下午6点来拜访你，方便吗？
Of course. Good luck. Have a good trip.
一定。祝你好运。旅途愉快！