code: def _build_str_from_chinese(chinese_items):
      
      year, month, day = chinese_items
      year = reduce(lambda a, b: a*10+b, map(CHINESE_NUMS.find, year))
      return '%04d-%02d-%02d 00:00:00' % (year, _parse_chinese_field(month), _parse_chinese_field(day))
docs: 根据解析出的中文时间字符串的关键字返回对应的标准格式字符串