pin something on someone
phrasal verb with pin verb uk/pɪn/ us/pɪn/ -nn-
(also hang something on someone)
把…归咎于（尤指无辜者）
to blame someone for something, especially for something they did not do
You can't pin the blame on her - she wasn't even there when the accident happened. 你不能把责任推到她身上——事故发生时她根本不在现场。