“愚行”的英语可以翻译为：carryings-on ...

如果你继续此种愚行,你就将自毁前程.You will ruin your prospects if you continue to be so foolish.老人很后悔他年轻时的愚行.The old man felt regret for the follies of his youth.他痛悔自己的愚行.He has bitterly repented his folly....