(IP 
  (PP-TMP 
    (P 在)
                    
    (NP 
      (CP-APP 
        (IP 
          (NP-SBJ 
            (NN 心情))
                    
          (VP 
            (VCD 
              (VV 焦躁)
                    
              (VV 浮动))))
                    
        (DEC 的))
                    
      (NP 
        (NN 关键)
                    
        (NN 时刻))))
                    
  (PU ，)
                    
  (NP-SBJ 
    (PN 它))
                    
  (VP 
    (ADVP 
      (AD 往往))
                    
    (VP 
      (VV 可以)
                    
      (VP 
        (VP 
          (VV 发挥)
                    
          (NP-OBJ 
            (CP-APP 
              (IP 
                (NP-SBJ 
                  (-NONE- *PRO*))
                    
                (VP 
                  (VV 安心)))
                    
              (DEC 的))
                    
            (NP 
              (NN 力量))))
                    
        (PU ，)
                    
        (VP 
          (VV 托持)
                    
          (NP-OBJ 
            (QP 
              (CD 一)
                    
              (CLP 
                (M 个)))
                    
            (NP 
              (NN 人)))
                    
          (IP 
            (NP-SBJ 
              (-NONE- *PRO*))
                    
            (VP 
              (ADVP 
                (AD 不))
                    
              (VP 
                (VV 要)
                    
                (VP 
                  (ADVP 
                    (AD 往下))
                    
                  (VP 
                    (VV 陷落)))))))))))
arg0: 
                    心情