白驹过隙

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

white / snowy / pure / bright / empty / blank / plain / clear / to make clear / in vain / gratuitous / free of charge / reactionary / anti-communist / funeral / to stare coldly / to write wrong character / to state / to explain / vernacular / spoken lines in opera

colt

surname Guo

to cross / to go over / to pass (time) / to celebrate (a holiday) / to live / to get along / excessively / too-

(experienced action marker)

crack / crevice / gap or interval / loophole / discord / rift