He drew an oblique line form one corner of the paper to the other.

他从纸的这角到另一角画了一条斜线。

The lines are drawn on a slant.

这些线条被画成斜线。

The book has a diagonal black stripe on the cover.

书的封面上有条连对角的黑斜线。

This is an oblique line.

这是条斜线。