鹬蚌相争，渔翁得利

Explanation: Snipe Long-billed birds; mussels have shells of molluscs. Metaphor of the two sides at loggerheads over, will suffer, so that a third party an advantage. 　　Usage: Complex sentence; as the predicate attribute; containing derogatory 　　Source: Han Liu Xiang "Warring Yan policy two" party in mussels exposed, and sandpipers pecking at its flesh, clam and clamp together the bill. Snipe said, 'does not rain today, tomorrow does not rain, that is, dead clam. 'Clam Yiyue' does not rain today, tomorrow does not rain, which had died snipe. 'Phase two would not care, fish and birds of the bidder and