yǎng yōng yí huàn

Translation

  • lit. to foster an ulcer and bequeath a calamity (idiom)
  • tolerating budding evil can only lead to disaster
  • to cherish a viper in one's bosom

Synonyms

  • 养痈成患, 养虎遗患, 后患无穷, 放虎归山, 留后患, 纵虎归山
Chinese Tones