The iPad has a touch-screen that is just under 25 centimeters in diagonal.

VOA: standard.2010.04.03

And then there is this group of about half a dozen right down the diagonal middle.

然后有一个包含六个元素的元素组,在周期表的对角线的中部。

麻省理工公开课 - 固态化学导论课程节选

It starts out in a straight line and then it hops off on a diagonal.

马以直线出发但必须飞对角线。

耶鲁公开课 - 1945年后的美国小说课程节选