资料来源 : pyDict

不能挽回的事

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Irrevocability \Ir*rev`o*ca*bil"i*ty\, n. [Cf. F.
   irr['e]vocabilit['e].]
   The state or quality of being irrevocable; irrevocableness.