Concavo-convex
a. 凹凸的, 一面凹一面凸的\\n[化] 凹凸的
🧩 词语组成解析
convex
['kɔn'veks]
adj. 凸的，凸面的;凸状;凸形;
🗣️ 情景例句
Yes, there is.
有，有心事
That's what I guessed.
跟我猜的一样。
The captain learnt from the letter that the name of the lost ship was the Karen.
从这封信中船长了解到沉船船名是“卡伦”号。