钩爪锯牙

Explanation: Sharp refers birds song, sharp claws and teeth. Metaphor's ferocious brutality. Also be used to the armed forces. 　　Usage: Joint type; as the predicate attribute; metaphor's ferocious brutality 　　Source: Han Liu, "Huainanzi this by training": "Fenghuang high, sentence claws, home teeth, wearing angle, the distance of the beast of prey then carry on."