completely mistaken

大错特错
常用释义
大错特错

例句

I was most probably it did not actually happen to ask the treatment unit, welfare and other issues, later that I completely mistaken!

我曾想当然地问了单位的待遇、福利等问题，后来才知道我大错特错了！

If you think women don't enjoy watching other people get it on, you're completely mistaken.

如果你认为女人不爱偷窥别人的床弟之欢，那就大错特错了。

你对约翰的看法完全错了。