Concavities
n. 凹面, 成凹形( concavity的名词复数 )
🗣️ 情景例句
I need to confirm my reservation.
我要确认我的预定。
Poverty parteth fellowship.
贫穷断友情。
I think I can trust you, especially after what my son has told me.
我想我能够信任你，特别是在我儿子把情况告诉我以后。