“張冠李戴”，漢語成語，字面意思是把姓張的人的帽子戴到姓李的人的頭上（put Zhang’s hat on Li’s head）；比喻認錯了對象，弄錯了事實。可以翻譯爲“attribute something to the wrong person，mistake one thing for another或put the boot on the wrong leg”。
例句：
那是他的錯，你不要張冠李戴。
It's his fault. You needn't try to shift the blame.