新发于硎

Explanation: New hair just wear off; whetstone whetstone. Knife on a grindstone mill just over. Described as sharp or very first debut. 　　Usage: Partial official; as predicate, attribute, object; with a compliment, for written language 　　Source: Qin Zhuang Zhou "Zhuangzi health master" nineteen years this minister of the knife men, and the stops kN men, while the blade if the new hair in the whetstone. " 　　Examples: Today there are fellow Ma Xiaolian, ~, cable Chang'an familiar book. ★ clear Gongzizhen "and Wu Hongsheng book" Thesaurus:  be sharp, Hair can be broken, New whetstone