drain the swamp
清除腐败或不良现象，彻底解决问题
政治·比喻彻底清除腐败或不良问题
英文释义
to eliminate corruption or inefficiency, usually in a political context
例句
The new mayor promised to drain the swamp by firing corrupt officials and reforming the system.
典故来源
原指排干沼泽以消灭蚊虫和疾病，后引申为清除政治体系中的腐败、低效或不良现象。