MDBG Mobile Chinese English Dictionary (iPhone, Android, Windows Phone)

Referenced entries:

鹬蚌相争，渔翁得利	yù bàng xiāng zhēng , yú wēng dé lì	lit. when the snipe and the clam grapple with each other, the fisherman catches them both (idiom) / fig. when two sides are locked in dispute, it's often a third party that benefits