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170页(191字)
任意胡为,侵犯他人而毫无忌惮,例不法分子的横行无忌常靠有权势的后台撑腰,才敢胡作非为。
That these lawless people can run amuck is usually because they have the support of the powerful.