clean the slate

基本解释

So, if I confess, it'll clean the slate, right?
好啊，你们不是很好玩吗。
When you clean off the slate, take care not to break it.
在带保险套时小心不要被手指甲划破。
http://dict.hjenglish.com
To really make the clean slate method work for you, it’s helpful to set a purge deadline.
想要让那些简化的方法真正的为你所用，设置一个排气的截止日期是非常有用的。

The creation almost of a clean slate, even more so I would argue than the disruption that it came after the fall of Rome, because there's one big difference.
这几乎就是从一张白纸重新创作,甚至比起,我认为,比起紧随罗马陷落而出现的分裂更有价值,因为这两者有一个巨大的差别
耶鲁公开课 - 古希腊历史简介课程节选

It's based on flawed assumptions that - the first of which is that we can just kind of wipe the slate clean after three and a half years of sacrifice and death and the president gets a do-over.
NPR: A Military Wife on Bush Plan for Troop Increase
Batman Begins also showed that wiping the slate clean and starting over was completely fine.
FORBES: Christopher Nolan Delivers Super Hero Perfection With The Dark Knight Rises
Simonsen also reads Clean Slate, the real estate blog of Better Homes and Gardens.
FORBES: Real Estate Feature