心腹之患

Explanation: Confidant analogy point. Metaphor hidden in a serious scourge of internal. Also refers to the greatest risk. 　　Usage: Partial official; as object; containing derogatory 　　Source: "Ten year of Duke Ai Zuo Zhuan" more in me, and confidant of the disease also. "" Later Han Chuan Chen Fan, "Kou thief in place, the limbs of the disease; internal eye scourge." 　　Examples: We all think that this ~ day without addition, on the day no peace. 　　Results: Long tumor on belly; needle gargling stomach 　　Postscript: Long tumor on belly; needle gargling stomach 　　Riddle: The disease Thesaurus:  Metamict elbow and armpit, Bad health elbow and armpit, Hinterland of the disease, favorite hydra, Elbow and armpit Of patients Antonym Group:  A slight ailment, subtle Of the disease