jmdict
2052550
Active
(id:
1988315)
2052550 jmdict A [id=1988315]
百年河清
ひゃくねんかせい
[1][exp][yoji]
waiting for one hundred years for the waters of the Yellow River to clear; waiting in vain for an unlikely event; waiting for pigs to fly; when the sky falls, we shall catch larks