frequent occurrence
- 网络频繁发生;事件频繁发生
 frequent occurrence
frequent occurrencefrequent occurrence
频繁发生
 ... ) Frequently recurrent 频繁复发 ) frequent occurrence 频繁发生 ) Compound frequent itemset tree 复合频繁模式树 ... 
                事件频繁发生
近几年高校死伤事件频繁发生(frequent occurrence),这也令不少大学生陷入了对室友的疑虑之中(doubt and distrust ), …
                1
        
      2
        
      3
        
      4
        
      5
        
      6
        
      7
        
      8
        
      9
        
      10
        
      11
        
      12
        
      13
        
      14
        
      15
        
      16
        
      17
        
      18
        
      19
        
      20
        
      21
        
      22
        
      24
        
      25
        
      26
        
      27
        
      28
        
      29
        
      30
        
      