In most of the residence halls we visited, rules prohibit disorderly conduct.在我们走访的学生宿舍里,大多明令禁止胡作非为。It was my duty to stop her misconduct.我有责任阻止她胡作非为。The armed robbers rampaged through the financial district.武装抢劫犯在金融区内横冲直撞胡作非为。The soldiers ran amok after one of their senior officers was killed.一名高级军官被杀后,这支军队开始胡作非为。