一波三折

Explanation: Originally referred to the writing of strokes varied twists and turns. Compared the structure of the article are ups and downs. Also used to refer to an accidental change things a lot. 　　Usage: Joint type; as predicate, object; metaphor things are a lot of unexpected changes 　　Source: Jin Wang Xizhi "Mrs. Wei topic map document matrix" for each wave, often over three fold document. "" Propaganda and books on the interior spectrum too nervous, "Volume natural tendency of its twists and turns document, grouped careful." 　　Riddle: Skin; upper middle lower Thesaurus:  storm and stress, Rosy clouds Fugitive, hard to fall asleep, Good Things, cutter jitney, Tao fierce storms, A new wave arose when the previous one had barely subsided