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
Oh, it's so beautiful, Marilyn!
噢， 它好漂亮 Marilyn
Every cloud has a silver lining.
山穷水尽疑无路，柳暗花明又一村。
Do you want to have lunch with us?
你跟我们一起吃午饭好吗？