顽疾 (頑疾) wánjí
          
              wánjí 
              
              noun 
              ineradicable disease; fig. deep-seated problem; perennial problem 
              Domain: Modern Chinese 现代汉语
              
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                , Concept:  
              
              
              
                Notes: (CC-CEDICT '頑疾')
              
               
          
          
Word is mentioned most frequently in
Truncated for common words
- Scroll 2: Keep Good Thoughts - Nursing 卷二 存好心 看護 Life's Ten Thousand Affairs 5 - Doing Battle with Yourself 《人間萬事5-向自己宣戰》 — count: 1