wipe the slate clean

基本解释

The EFSF could be used now to wipe the slate clean but it will quickly be tapped out if the banks need further cash or if the revenue shortfalls in the peripheral countries grow.
EFSF目前可用於將債務一筆勾銷，但如果銀行業需要更多現金或者歐元區邊緣國家的財政收入缺口進一步擴大，這筆資金將很快耗盡。
Now a new study published Friday in Science asks whether hand-washing can wipe the slate clean of any past behavior — even everyday decisions, like, say, choosing Paris over Rome for vacation.
如今在周五的《科學》襍志上發表的一項新研究正試圖了解洗手能否洗刷掉人們對過去的任何行爲的看法——甚至是日常決定，例如，選擇去巴黎還是羅馬度假。
January is a popular time to wipe the slate clean.
一月正是推陳出新的大好時機。

John Thain, Merrill's chief executive officer, appears to be doing everything he can to wipe the slate clean for the company.
FORBES: Merrill Moves To Shore Up Books
Yet irrespective of how the specific write-down numbers are interpreted, H-P has seized on the Autonomy debacle as an opportunity to wipe the slate clean.
FORBES: H-P: Is There a Miraculous Recovery Ahead?
Unlike an Etch-a-Sketch you cannot wipe the slate clean here.
FORBES: No Etch a Sketch for Federal Tax Law

to start a new and better way of behaving, forgetting about any bad experiences in the past