code: private void pushPiece(String sentence, String normalized, int start, int end, byte preType, List<String> wordList)
      {
          if (preType == CharType.CT_CHINESE)
          {
              segmenter.segment(sentence.substring(start, end), normalized.substring(start, end), wordList);
          }
          else
          {
              wordList.add(sentence.substring(start, end));
          }
      }
docs: CT_CHINESE区间交给统计分词，否则视作整个单位
  
  @param sentence
  @param normalized
  @param start
  @param end
  @param preType
  @param wordList