正牙反牙英语（以牙还牙用英文怎么表达）

to fight fire with fire 字面上意思是以火治火

和中文成语 “以牙还牙” 及习语 “以其人之道还治其人之身” 相似

双语例句：

Our competitors are trying to steal our customers. We are going to have to fight fire with fire and steal some of theirs.

我们的竞争对手试图挖走我们的顾客。我们得以其人之道还治其人之身，也去他们那里挖客户过来。