解释 ◎ 家贼难防 jiāzéi-nánfáng[thief in the family is difficult to detect; a thief from within is hard to guard against;it is difficult to forestall a thief within the house] 家属或内部的人作弊…
解释 ◎ 积重难返 jīzhòng-nánfǎn[bad old practices die hard;it is difficult to get rid of deep-rooted practices;ingrained habits cannot be cast off overnight] 积存的问题或陋习很深,难以改变 引用解释 见“ 积重难反 …