Concavation
凹度
🗣️ 情景例句
He has the advantage of a good education.
他有受过良好教育的优势。
There's a cool breeze this evening.
今晚有凉爽的微风。
Although an ocean wave gives the impression of a wall of water moving in your direction,
虽然，海浪给人的印象是一堵由水组成的墙向你压过来，