do wrong

I now know with hindsight that I did him a terrible wrong.

我事后才明白我完全冤枉了他。

No man is necessitated to do wrong.

没有是被迫去作错事的。

He admitted he had done her wrong and asked for forgiveness.

他承认曾经冤枉她，并且请求谅。

He did wrong, and in the end his wrongs undid him.

行恶者终以其恶毁其身。