Concaveness
n. 凹面, 成凹形
✅ 同义词
🗣️ 情景例句
Yes, she does. She works at home.
是的，她工作。她在家里工作。
The sooner the better.
越快越好。
A Festival for the Dead is held once a year in Japan.
日本每年过一次“亡灵节”。