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ひゃくねんかせい

百年河清

表記・読み:ひゃくねんかせい

  1. 1

    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

    expressions (phrases, clauses, etc.)yojijukugo