concavities的读音 concavities中文意思
读音
n. 凹面，成凹形( concavity的名词复数 )concavities 用法和例句
- I wish I were your second derivative so I could fill your concavities .
- 我希望我是你的另一个衍生物，那么我就可以填充你的凹陷了。