宝刀不老 bǎo dāo bù lǎo

DEFINITIONS

  1. lit. a good sword always remains sharp (idiom)
  2. fig. (of one's skills etc) to be as good as ever
  3. the old man still has it

CHARACTERS

宝 bǎo
HSK 5
treasure, jewel; precious, rare
刀 dāo
HSK 4
knife; old coin; measure
不 bù
HSK 1
no, not; un-; negative prefix
老 lǎo
HSK 1
old, aged; experienced