It is easy to understand why as long as one keeps in mind the information contained in the two types of curves.

这就很容易理解只要记住这两种类型的曲线包含的意思的原因了。

youdao

It is easy to understand why as long as one keeps in mind the information contained in the two types of curves.

这就很容易理解只要记住这两种类型的曲线包含的意思的原因了。

youdao