Convexo-concave
a. 一面凸一面凹的\\n[建] 凸凹的
🧩 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
Why do we need a swimming pool? Everyone in the family hates swimming!
我们需要游泳池做什么呢？家里人都讨厌游泳。
On the morning of the next day he went to New York.
第二天早晨，他去了纽约。
Sometimes they eat it in the park or on the road. This take-away food is very popular.
有时他们在公园里或路上食用。这种方便食品颇受欢迎。