天有不测风云

Explanation: Metaphor of evil is unpredictable. 　　Usage: Complex sentence; for clause; containing derogatory 　　Source: Yuan Anonymous "contract language" fourth fold: "a bolt, one boom to bust overnight." 　　Examples: Lu Xun's "Wandering blessing": "This is called the '~', her man is a solid person, who knows of Ji Qingqing, it will ruin the typhoid fever on?" Thesaurus:  Human fortunes are