雨迹云踪

Explanation: Traces of clouds and rain. Metaphor of the past. 　　Usage: Joint type; as object, attribute; men and women love a good past metaphor 　　Source: Ming Tang, "The Peony Pavilion dream" how make cheat, according to the children who see the hope to imagine, that when the flies come and go in persistent. Not far away, it disappeared before the rain clouds trace a turn, the courage to take near by Liu, also reproduce. " 　　Examples: Ming Tang, "The Peony Pavilion dream": "non-far, that - before a turn, the courage to also reproduce by flowers near the willow."