Concaveness
n. 凹面, 成凹形
✅ 同义词
🗣️ 情景例句
I hope you won't take offense, But will accept what I say here as some fatherly advice.
我希望你不要反感，能够接受我这父亲般的建议。
The ground around here is stony and not very good for farming.
在这里附近的地多石做为耕作不很好的。
What are you doing, Mum?
妈妈，你在干什么？