Changing ur attitudes will turn a new leaf in ur life.

转变态度可以改变一生。

He decided to turn a new leaf and work hard for his girl friend.

他决定痛改前非，为了他的女朋友努力工作。

The thief was determined to turn a new leaf once he was released from prison.

那读贼下决心，一旦获释便棕新做伤。

I sincerely hope that the pain you are currently feeling will subside soon and you can turn a new leaf in your life.

我真诚地希望你的痛苦能够早日过去并且能早日找到属于你的新的另一半。

Thirdly, it's necessary to formulate new conception of scientific management and turn a new leaf in the field concerned.

第三，形成科学管理的新思路，开创管理新局面；