宝刀不老
- na.A good sword remains always sharp [never gets dull].
- 网络a good sword never get dull; he can still kill; There is many a good tune played on an old fiddle.

宝刀不老
1.A good sword remains always sharp [never gets dull].; (You will find my) good sword sharp enough.; old but still vigorous in mind and body; The treasured sword is not yet blunt.