青丝婉转
[qīng sī wăn zhuăn]
'青丝'(qīng sī) traditionally refers to black hair of youth symbolizing young vigor or beauty; '婉转'(wǎnzhuǎn) means graceful twists and turns often used for melodious voice/song. Together, they evoke imagery of graceful elegance and youthful vitality, probably hinting at pure-heartedness.