"Thorny (problem)" • Chinese-English Dictionary
| 棘楚 | jí chǔ | thorny problem / troublesome affair |  |
| 死结难解 | sǐ jié nán jiě | enigmatic knot hard to untie (idiom) / thorny problem / intractable difficulty | |
| 攻坚克难 | gōng jiān kè nán | to tackle a thorny problem and overcome its challenges | |
