cleanse the Augean stable 清除污垢；彻底清除积弊

【例句】
How to clean the Augean stables of this city remains a critical problem.
如何扫除这个城市的积弊仍然是个紧要问题。

Although they know it is not easy to reform the Augean stables of the society, they are still trying to do it.
虽然知道要改革社会的陈规陋习不是那么容易，他们仍然努力去做。