置之不問

to pass by without showing interest (idiom)

to install / to place / to put / to buy

(possessive particle, literary equivalent of 的[de5]) / him / her / it

no; not so / (bound form) not; un-

to pay no attention to / to disregard / to ignore / to let go unpunished / to let off

to ask / to inquire

to ask; to inquire