出处:按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第168页(198字)
为非作歹,违法乱纪,例他平日道貌岸然,想不到竟也作奸犯科,真是出人意料。
He was such a prim and proper personwho would ever have thought he would commit crimes in violation of the law!