resort後面加什麼介詞

後邊加to，例如：

1、It's pathetic that grown men have to resort to violence like this.成年人還得這樣訴諸暴力，真可悲。

2、They felt obliged to resort to violence.他們覺得有必要訴諸暴力。

3、Why do they always have to resort to violence?為什麼他們總是非要訴諸暴力不可呢