老大难问题 meaning in English
a knotty problem of long standing
hard nut to crack
Examples
- Drought and soil erosion had long been a major problem .
干旱和水土流失一直是个老大难问题。 - You are a difficult case .
你是个老大难问题。 - Jump automobile at bridge end in soft clay area is a difficult problem of highway building over the years
软土路段桥头跳车是公路建设中的一个老大难问题。 - Nowadays , there are some problems that lead to inferior quality and low effectiveness in moral education
摘要学校德育工作中存在著质量与效果偏低的老大难问题。 - Questions of intellectual influence and causation are notoriously difficult , especially in the case of an author so far removed in time
问题的智力影响和因果关系，是个老大难问题，特别是在案件作家如此远的时候。