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
Don't worry. The traffic is very heavy at this hour.
别担心。这个时间交通很拥挤。
This is my second year of college, I'm a sophomore.
这是我上大学的第二年，我是二年级学生。
By the time he can talk, he is the little creature of his culture,
到他会说话时，他就是传统文化塑造的一个小孩子了；