I'm rather used to having my toes trodden on by now,so I don't get upset.句子中这个ON如何理解啊?

问题描述:

I'm rather used to having my toes trodden on by now,so I don't get upset.
句子中这个ON如何理解啊?

have something done就是被动式。就是让脚趾头被踩过的意思,踩当然用介词on。

践踏在了我的脚趾上
tread on my toes
被动后,on 也不能去掉.