(IP 
  (NP-SBJ 
    (NN 国际)
                    
    (NN 社会))
                    
  (VP 
    (PP-DIR 
      (P 对)
                    
      (NP 
        (PN 此)))
                    
    (VP 
      (VV 必须)
                    
      (VP 
        (VP 
          (VV 保持)
                    
          (NP-OBJ 
            (DNP 
              (ADJP 
                (JJ 高度))
                    
              (DEG 的))
                    
            (NP 
              (NN 警惕))))
                    
        (PU ，)
                    
        (VP 
          (VV 制止)
                    
          (NP-PN-OBJ 
            (NR 美国))
                    
          (IP 
            (NP-SBJ 
              (-NONE- *PRO*))
                    
            (VP 
              (ADVP 
                (AD 再次))
                    
              (ADVP 
                (AD 恣意))
                    
              (VP 
                (VV 妄为)))))))))
arg0: 
                    *PRO* 
                
argm: 
                    恣意 
                
argm: 
                    再次