If you think I stole your lunch, you're barking up the wrong tree.

如果你认为我偷了你的午餐，那你就是在做错误的假设。

The manager is barking up the wrong tree by blaming the sales team for low numbers.

经理把销售团队的低业绩归咎于错误的对象。

She’s barking up the wrong tree if she thinks her friends will support her bad behavior.

如果她认为她的朋友会支持她的不当行为，那她就是在做错误的假设。

You might be barking up the wrong tree by searching for answers in the wrong book.

你可能在错误的书中寻找答案，这样是错误的方向。

Stop barking up the wrong tree; I wasn't the one who broke the vase!

别再做错误的假设了；不是我打破了花瓶！