How dare he criticize me for having an affair? He's not exactly as pure as the driven snow himself.他怎么敢指责我有外遇？他自己也不是纯洁无瑕的。She was a real-life fairytale princess, pure as the driven snow.她就是现实生活中的童话公主，纯洁如雪。I hardly think she was as pure as the driven snow.我几乎不相信她是冰清玉洁的。