idiom > useless to regret
Contents
He and macrophage umbilical
  Explanation: Umbilical macrophages: nibbled navel. Navel like biting like, out of reach. Metaphor is too late to regret.
  Usage: Contraction type; as the predicate clause; containing derogatory
  Source: Pre Hengyu "Zuo Zhuang six years": "If early map, after the bite Jun Qi (navel), and charts its almost?"
  Examples: Should the resistance, real flame Kungang, both for the Jifen, ~? (Ming Xu Zhonglin "Gods" forty-back)
shì qí hé jí
  Bite: bite; and; to. When the regret, like the mouth bite his navel as vain, to no avail. Later on the use of "overwhelm Ho and" metaphor is too late to regret
Translated by Google
噬脐何及shì qí hé jí
  【解释】:噬脐:用嘴咬肚脐。像咬自己肚脐似的,够不着。比喻后悔也来不及。
  【出处】:《左传·庄公六年》:“若不早图,后君噬齐(脐),其及图之乎?”
  【例句】:如若抗拒,真火焰昆冈,俱为齑粉,噬脐何及?(明·许仲琳《封神演义》第四十二回)
English Expression
  1. n.:  useless to regret,  repent too late as one who is unable to bite one's navel
  2. v.:  too late to regret
Thesaurus
rude awakening, Useless to regret Mo and, s too late (to do)