Concavity
n. 中央凹陷, 凹洼, 凹曲线\\n[医] 凹, 凹面
✅ 同义词
📖 牛津释义
concavity
n
(a) [U] quality of being concave 凹状; 凹形.
(b) [C] concave surface 凹面.
🏥 医学释义
凹面，凹度
🗣️ 情景例句
I haven't seen you for a long time.
很久没见了。
You are darker than I am.
你比我黑。
But it's going to be a very tiring five years for me.
不过对我来说，这将是非常累人的五年。