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。

youdao

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。

youdao