白駒過隙 bái jū guò xì

DEFINITIONS

  1. a white steed flits past a crack (idiom); How time flies!

CHARACTERS

白 bái white; pure, unblemished; bright
駒 jū colt; fleet, swift; sun; surname
過 guò pass, pass through, go across
隙 xì crack, split, fissure; grudge