"close the books on" in Chinese (Simplified)
结案结束（某事）
Definition
结束处理某事，特别是调查、案件或问题，通常表示不会再采取行动。
Usage Notes (Chinese (Simplified))
常用在商业、法律或正式场合，是比喻的表达。可以指结束账目，也指结束事务。注意与 'close the book'（单数）区分。
Examples
The company decided to close the books on the old project.
公司决定**结案**旧项目。
The police have to close the books on the investigation.
警方必须**结束**调查。
After years, the team could finally close the books on the missing person case.
多年后，团队终于可以**结案**失踪人员案件。
We can finally close the books on last year and move forward.
我们终于可以**结束**去年，继续前进了。
It's time to close the books on this discussion and focus on new ideas.
现在是**结束**这次讨论，专注新想法的时候了。
Sometimes you have to close the books on things you can't change.
有时候你得**结束**无法改变的事情。