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Search Terms: 立つ鳥跡を濁さず*, たつとりあとをにごさず*
Dictionary results(showing 1 results)
expression
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it is simply common courtesy to clean up after yourself, a bird does not foul the nest it is about to leave, on leaving a place one should see that all is in good order(proverb)
See also:跡を濁す (あとをにごす)