坐在你斜对面的那个女生一直在看着你。

Zuò zài nǐ xiéduìmiàn de nà ge nǚshēng yìzhí zài kànzhe nǐ.

The girl sitting diagonally across from you has been staring at you.

他在纸上画了几条斜线。

Tā zài zhǐ shàng huà le jǐ tiáo xiéxiàn.

He drew a few diagonal lines on the paper.

阳光从窗户斜照进来。

Yángguāng cóng chuānghù xié zhào jìnlái.

The sunlight shines into the room at an angle through the window.