Concavities
n. 凹面, 成凹形( concavity的名词复数 )
🗣️ 情景例句
When are Susan and Harry picking you up, Marilyn?
Susan和Harry什么时候来接你们， Marilyn
If I can't go with you, what is your reaction?
如果我不能和你一起去，你会作何反应？
How do I look?
我看起来怎么样？