光前绝后

Explanation: Metaphor to do cleanly, leaving no trace. 　　Usage: Joint type; as attribute; metaphor to do cleanly 　　Source: Song F key "Postscript Liu Zhu Shan Tie": "his life is rich in celebrity calligraphy, and independent book that Mr. Zhu Shan light before the non-repeatable, especially Mibao it." 　　Examples: The Villain everything goes in the section level, tonight night as long as ~. (Ming Shinai "Tales of" sixty-back)