鹤长凫短

Explanation: "Zhuang Zi Pian thumb": "mallard legs may be short, if you added to worries; crane's legs may be long, breaking is sad." Later "long crane mallard short" as a metaphor of things its own characteristics. 　　Source: "Zhuang Zi Pian thumb" mallard legs may be short, if you added to worries; crane's legs may be long, breaking is sad. " 　　Examples: ~ Can not be together in the end I do not know who is who. ★ Um ended Yuan Lu, "sighed the World Mandarin Bin" divertimento Thesaurus:  Hechangfengduan, Hechangfuduan