The educational system of that country is covered with barnacles.该国教育制度充满了积重难返的陈规。Problems have been aggravated by long neglect.因为长期以来弃之不顾，问题积重难返。The problems are far more deep-seated than we thought.这些问题远比我们想的还要积重难返。Laziness is my besetting sin.懒惰是我积重难返的恶习。