Д239
ДОЛГО ЛИ, КОРОТКО ЛИ folk
AdvPInvaradvfixed WO for some (unknown and inconsequential) amount of time
for a time, a long time or a short time
for a while, it doesn't matter how longhow long (
s.o. was doing
sth. (
sth. was going on
etc)) is no matter.