Convexities
n. 凸状, 凸面( convexity的名词复数 )
🗣️ 情景例句
I'd really like to pick up Grandpa at the railroad station.
我真想去火车站接爷爷。
He that marries for wealth sells his liberty.
为财富而结婚就是出卖自由。
I'll have tea,please.
茶吧。