We use it with 'a'-a wrong 'un. Like that. A wrong 'un.

通常我们会将这个词和定冠词a一起连用，a wrong 'un来形容不诚实的人。

Li, actually, sorry to say this, but I think he looks like a wrong 'un!

莉，实际上，虽然我很抱歉这么说，但是我认为他是不诚实的人！

Maybe he's lying. He's a wrong 'un. Listen to these examples.

可能他在说谎。他是不诚实的人。来听这些例句。

He's a real wrong 'un. He always gets into fights.

他真是一个不道德的人。他总是和别人打架。

Ahh, I thought he could be Mr Right, and you think he's a wrong 'un?

啊，我只是觉得他可能会是我的真命天子，而你却觉得他是不诚实的人？

You know, although she says nice things, that Sue's a wrong 'un. She owes so many people money!

你知道，虽然她总是说好话，但其实苏是个不诚实的人。她欠很多人钱！

'Do you think Searle was a wrong 'un'?

“你认为塞尔是个错误的‘联合国’吗？

" You mean she thinks he's a wrong 'un" ?

“你是说她认为他是个错误的人”？

A wrong 'un. That means a bad person, someone you can't trust. It's a slang way of saying 'a wrong one'.

不诚实的人。意思是说他是坏人，是你不能信任的人。这是坏人的俚语表达方式。

'She didn't suggest to you that Searle was a wrong 'un'?

“她没有向你暗示塞尔是个错误的‘联合国’？