To clear (an area) of remaining enemy troops after a victory.
肃清：在胜利之后清除一个地区的残余敌军部队
&I{Informal} To perform the minor tasks that conclude a project or an activity.
【非正式用语】 执行不重要的任务，包括一个项目或一次活动
(informal)put an end to or dispose of something
(非正式)结束；处理
he aims to mop up corruption.
他志在消除腐败。