蛻化變質

蜕化变质
tuìhuàbiànzhì
(idiom) to degenerate (morally); to become depraved

CEDICT

Entry Composition

1 蛻化 tuìhuà
  1. (of insects) to undergo metamorphosis
  2. (fig.) to be transformed
  3. to metamorphose
  4. to become degraded
2 變質 biànzhì
  1. to degenerate; to deteriorate
  2. (of food) to go bad; to go off
  3. (geology) metamorphism