山雨欲来风满楼

Explanation: Metaphor of major tension before the incident. 　　Usage: Complex sentence; as object, attribute, clause; compared the situation before the change will have significant signs of 　　Source: Tang Xu Hun, "Xianyang East House" poem: "Kai Yun Shen Court early days, Rain Comes from Wind." 　　Examples: Mao Dun "on": "After the first two chapters eleven chapters of this text started slowly stormy picture, but the '~' trend." Thesaurus:  Dark To pressure the City Buildings destroyed