Convexities
n. 凸状, 凸面( convexity的名词复数 )
🗣️ 情景例句
Oh, fine.
嗯 很好。
I used to have dinner at 7:30 and go to bed early.
我过去常在7:30吃晚饭并且早睡觉。
Good morning, Mr. Blake.
早上好，布莱克先生。