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
How's that?
这是怎么一回事？
They bray most that can do least.
说话最多的人，能做的事最少。
Apparently, there is a good deal of truth in this idea.
显然，这种说法里面包含着许多真实性。