bark up the wrong tree
对一个问题、情况或人的判断完全错误
口语·表示指责或调查对象错误
英文释义
to pursue a mistaken or misguided course of action or to blame the wrong person or thing
例句
If you think I took your pen, you're barking up the wrong tree—I have my own.
典故来源
源自19世纪美国狩猎场景，猎犬会对着树上的猎物吠叫，但如果猎物已逃到另一棵树，猎犬就白费力气，比喻找错目标。