点睛之笔

Explanation: Pen: pen. Refers to the expressive wonder of the article. 　　Source: "Book of Jin Gu Kai Chuan" Kaizhi into each of the painter, or a few years does not point mesh eyes. People asked the reason. The answer was' four-body Yan Chi, Que no less than the beauty, vivid portrayal, is witnessed in Afghanistan. '"