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
Help! Help! I can't swim!
救命！ 救命！ 我不会游泳
Will you plan to join me for dinner?
你要跟我一起吃饭吗？
On Saturday, Ann came home from school a little earlier.
星期六，安放学后提早了点回家。