using System.Text.RegularExpressions;
   
public static string GetChineseWord(string oriText)
{
  string x = @"[\u4E00-\u9FFF]+";
  MatchCollection Matches = Regex.Matches
  (oriText, x, RegexOptions.IgnoreCase);
  StringBuilder sb = new StringBuilder();
  foreach (Match NextMatch in Matches)
  {
   sb.Append(NextMatch.Value);
  }
  return sb.ToString();
}


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