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 received a letter from my parents this morning.
今天早上我收到父母一封信。
That was a lousy movie.
那电影糟透了！
Do you know what they are?
你知道他们是干什么的吗？