心腹大患

Pinyin: xīn fù dà huàn Explanation: 指严重隐患或要害部门的大患。同心腹重患”。 Thesaurus:  Metamict elbow and armpit, serious hidden trouble or danger, Bad health elbow and armpit, Hinterland of the disease, Elbow and armpit Of patients Antonym Group:  A slight ailment, subtle Of the disease