a clean slate
a state in which you are starting an activity or process again, not considering what has happened in the past at all:
The previous negotiations did not go anywhere, and we intend to start them again next week with a clean slate.
英语词典包含110679条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。