我的牛仔裤在栅栏上划破了。

I ripped my jeans on the fence.

《牛津词典》

汤姆走到栅栏前，倚在栅栏上，悲痛欲绝，希望她再多呆一会儿。

Tom came up to the fence and leaned on it, grieving, and hoping she would tarry yet awhile longer.

youdao

那些男孩在栅栏上乱写乱涂。

Those boys have scribbled on the fence.

《新英汉大辞典》

But in fact, in his own way, he's talking about his inability ; to keep his child alive there; in a kind of metaphorical way, speaking of his failure to build a fence to last.

但事实上，以他自己的方式，他在诉说自己的无能,不能让孩子活下来;,以一种象征性的方式，谈论自己不能制作出一个一直在那的栅栏。

耶鲁公开课 - 现代诗歌课程节选