(IP 
  (ADVP 
    (AD 但))
                    
  (NP-SBJ 
    (NP 
      (PN 其))
                    
    (CP-APP 
      (IP 
        (NP-SBJ 
          (-NONE- *PRO*))
                    
        (VP 
          (VV 入会)))
                    
      (DEC 的))
                    
    (NP 
      (NN 行动)))
                    
  (VP 
    (PP-PRP 
      (P 因)
                    
      (IP 
        (NP-SBJ 
          (-NONE- *PRO*))
                    
        (VP 
          (ADVP 
            (AD 早前))
                    
          (VP 
            (VP-FOC 
              (PP 
                (P 与)
                    
                (NP-PN 
                  (NR 美国)))
                    
              (VP 
                (VV 谈判)))
                    
            (VP 
              (VV 未果))))))
                    
    (PU ，)
                    
    (ADVP 
      (AD 一直))
                    
    (VP 
      (VV 延宕))))
arg0: 
                    其 *PRO* 入会 的 行动 
                
argm: 
                    一直 
                
argm: 
                    因 *PRO* 早前 与 美国 谈判 未果 
                
argm: 
                    但