心腹之患 [－－－－]

Jyutping sam1 fuk1 zi1 waan6
Pinyin xīn fù zhī huàn

Definitions (CC-CEDICT)
  1. lit. calamity within one's bosom (idiom); major trouble hidden within
Definitions (Wiktionary)
  1. noun
    serious hidden trouble or danger
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）