162'

目标口语：
You're dead wrong.
你大错特错。

例子：
You're right about many things, but you're dead wrong about this one. 
你在很多事情上都是对的，可是在这件事儿上你大错特错了。

If you think mastering a foreign language is easy, you are dead wrong. 
如果你觉得掌握一门外语很容易，那你有大错特错了。

You are dead wrong about him. You might change your mind after you get to know him.
你完全错看他了，你多了解他之后就会改变看法了。