蟪ㄏㄨㄟˋhuì蛄ㄍㄨgū不ㄅㄨˋbù知ㄓzhī春ㄔㄨㄣchūn秋ㄑㄧㄡqiū

  1. 蟪蛄夏生秋死，所以不知春秋。比喻生命短促或見識短淺。《莊子·逍遙遊》：「朝菌不知晦朔，蟪蛄不知春秋，此小年也。」

英lit. short-lived cicada does not know the seasons; fig. to see only a small piece of the big picture