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
What's the climate like in your country?
你们家乡的气候如何？
Beware of him who regards not his reputation.
要谨防不重自己名誉的人。
Control yourself!
克制一下！