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
He says I never turn them out when I leave.
他说我离开时从不关灯。
She was distinguished for her scientific achievements.
她因其科学成就而闻名。
It is a fine day today.
今天天气好。