Concavo-concave
a. 两凹的, 两面凹洼的\\n[建] 两面凹的
🧩 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
Well, I don't think it's anything serious.
嗯，我想没有什么严重的。
I'm afraid not. She doesn't have any openings in the morning.
恐怕不行。上午她没有空。
We'll be taking quotations next month.
我们将在下个月接受报价。