Concaveness
n. 凹面, 成凹形
✅ 同义词
🗣️ 情景例句
For a house.
为了房子。
Excitement and happiness, and we are deeply grateful to you for that.
也有开心、兴奋和愉快的时候，我们衷心感谢大家所做的一切。
She looked at it critically for a moment.
她认真的看了好一会儿。