resort后面加什么介词

后边加to，例如：

1、It's pathetic that grown men have to resort to violence like this.成年人还得这样诉诸暴力，真可悲。

2、They felt obliged to resort to violence.他们觉得有必要诉诸暴力。

3、Why do they always have to resort to violence?为什么他们总是非要诉诸暴力不可呢