(IP 
  (NP-SBJ 
    (NP 
      (PN 我))
                    
    (NP 
      (NN 国)))
                    
  (VP 
    (PP-LOC 
      (P 在)
                    
      (LCP 
        (IP 
          (NP-SBJ 
            (-NONE- *PRO*))
                    
          (VP 
            (VV 拓展)
                    
            (NP-OBJ 
              (CP 
                (WHNP-4 
                  (-NONE- *OP*))
                    
                (CP 
                  (IP 
                    (NP-SBJ 
                      (-NONE- *T*-4))
                    
                    (VP 
                      (VV 悬系)
                    
                      (NP-OBJ 
                        (NP 
                          (NP 
                            (PN 我))
                    
                          (NP 
                            (NN 主权)))
                    
                        (NP 
                          (NN 宣示)))))
                    
                  (DEC 的)))
                    
              (NP 
                (NN 邦交国)))))
                    
        (LC 上)))
                    
    (ADVP 
      (AD 一再))
                    
    (VP 
      (VV 受挫))))
arg2: 
                    *T*-4 
                
arg1: 
                    我 主权 宣示