【老大难问题】

老大难问题

hard nut to crack

... 困难问题 a hard row to hoe 老大难问题 a knotty problem of long standing; hard nut to crack 疑难问题 puzzling question ...

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a knotty problem of long standing

... a knotty problem of long standing 老大难问题 a shop of long standing 一家历史悠久的商号 aphonia of long-standing case 久 ...

基于2个网页-相关网页

老大难问题

A long-standing and difficult problem

以上为机器翻译结果，长、整句建议使用人工翻译。

解释链的最后一环，这个老大难问题一如既往。

There remains that old problem about the end of the explanatory chain.

youdao
暴雨引起的山体滑坡一直是个难以解决的老大难问题。

Landslides caused by heavy rain are a chronic problem.

youdao
这已经是好些年来的老大难问题，但是依然十分难去追踪它。

It has been the big thing for a few years now, but it's extremely hard to track.

youdao

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