維基辭典YuePhrase
Original phonetic: /pɪk̚⁵ ŋaːn¹³ tʰʊŋ²¹ ŋaːn²¹/
Describes a person who is old, but still has a youthful face.
Examples
遇一老人，碧眼童顏，手執藜杖。
He came across an old man; the old man had a youthful countenance, and was carrying a walking stick fashioned from the hardened stalk of a goosefoot plant.