大难临头

Explanation: Difficult: disaster; Pro: come. Disaster fell on his head. 　　Usage: The main predicate; as the predicate attribute; containing derogatory 　　Source: Zhuang, "Zhuangzi Qiu Shui": "temporary disaster and those who fear, courage of the saints are." 　　Examples: He seems to have what ~ like, say some stuttering, and voice trembling. (Lu Xun's "Wandering brothers") Thesaurus:  thunderbolt, Qingtianpili, abrupt, abrupt, allegro, transient, lightning, marvelous, furious, ephemeral, monstrous, horrifying, amazing, sudden, breathtaking, addle, chaotic, disorderly, incredible, hot, unhoped-for