晴天霹雳

Explanation: Ray started sunny. Sudden unexpected analogy shocking events. 　　Usage: The main predicate; as subject, object, attribute; containing derogatory 　　Source: Song Yang Wanli, "Set Volume II November Chengzhai trips per person per day on the lake," poem: "flat jump Snow, Perak under clear skies." 　　Examples: Bing "Lao She and the children": "This for me is the sound ~, would be so full of vitality of the people, ruffle die?" Thesaurus:  befaced with imminent disaster, Qingtianpili, abrupt, abrupt, allegro, transient, lightning, marvelous, furious, ephemeral, monstrous, horrifying, amazing, sudden, breathtaking, addle, chaotic, disorderly, incredible, hot, unhoped-for