Convexness
n. convex的变形
✅ 同义词
🗣️ 情景例句
Will you please take this upstairs, Susan?
麻烦你把这个带上去好吗， Susan？
He who rides a tiger is afraid to dismount.
骑虎者难下。
We welcome the seasons by the riverside,
我们在河边迎接一年四季。