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
He invests his money in the stock market, dreaming of huge profits.
他把钱投资在股市中， 梦想从中获暴利。
To heat
热一热
But the significant thing is not the behaviour of the players but the attitude of the spectators:
但是，要紧的还不是运动员的行为，而是观众的态度，