turn a new leaf

基本解釋

Thirdly, it's necessary to formulate new conception of scientific management and turn a new leaf in the field concerned.
第三，形成科學管理的新思路，開創(chuàng)管理新局面；
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Western leaders were right to have given him a chance to turn a new leaf after 2003,when he renounced his nuclear programme.
在03年后他放棄了核計劃，西方領導人才一改以往態(tài)度給了他一次機會（譯者注：我記得好像是聯(lián)合國取消對利比亞的一些持續(xù)了很多年的制裁）。
As flowers unfold and life renews, it is hard to imagine a more perfect setting for smokers to turn a new leaf and quit smoking.
花開花落，新的生命重新開始。用這來形容吸煙者戒煙并重新開始新的生活是再恰當不過的了。
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Beyond that, there's Venezuela and Bolivia, and both leaders made overtures to the president-elect, saying they wanted to turn a new leaf, open a new page.
NPR: Obama Win Changes Perceptions Abroad
Apple is understandably working to improve the mapping application, and removing Williamson appears to be part of an attempt to turn over a new leaf.
FORBES: Report: Maps Chief Ousted at Apple
In fact, if you think about it, the investors dumping its shares are in essence betting the U.S. government is about to turn over a new leaf and embrace tough, disciplined spending habits.
FORBES: CSC Shares Are A Bargain