半路杀出个程咬金 (半路殺出個程咬金) bànlù shā chū ge chéng yǎo jīn
          
              bànlù shā chū ge chéng yǎo jīn 
              
              phrase 
              Cheng Yaojin ambushes the enemy (saying); somebody shows up unexpectedly and disrupts the plan 
              Domain: Modern Chinese 现代汉语
              
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                Notes: (CC-CEDICT '半路殺出個程咬金')