追悔莫及

too late for regrets (idiom); It is useless to repent after the event.

to sculpt / to carve / musical instrument (old)

to chase / to pursue / to look into / to investigate / to reminisce / to recall / to court (one's beloved) / to binge-watch (a TV drama) / retroactively / posthumously

and / to reach / up to / in time for

surname Mo

do not / there is none who

to regret

(bound form) to regret; to repent

to repent / remorse