Concavity
n. 中央凹陷, 凹洼, 凹曲线\\n[医] 凹, 凹面
📖 牛津释义
concavity
n
(a) [U] quality of being concave 凹状; 凹形.
(b) [C] concave surface 凹面.
🗣️ 情景例句
It's not fair, Richard. I'm not even ready.
这样不公平, Richard。我甚至一点准备都没有。
Ale will make a cat speak.
酒后吐真言。
Something English? I know - fish and chips!
英国风味?我知道--炸鱼和土豆片!
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