He was arrested for assault, but he beat the rap.他因犯有侵犯人身罪而被拘留，但逃脱了牢狱之灾。Frye was arrested on state and federal charges, but he managed to beat the rap.弗赖伊因州和联邦指控被逮捕，但他还是逃脱了罪责。The accused beat the rap by pleading temporary insanity.被告以提出短暂的神智迷乱为借口逃避罪责。