The idiom to describe a good brushwork is urgency.

Through the back of the paper, the dragon and phoenix dances beautifully. Yan Bi walks the dragon and snake, and the pen walks the dragon and snake, and the silkworm head and phoenix tail hide its head and protect its tail. It sinks happily and calmly, learns graffiti, ups and downs, Ding Zhenkai grass, Ding Zhenyong grass, flying dragons and dancing phoenixes, full of strength and strength, wandering in phoenix, dancing dragonflies and flying back, flying back and charming dragons, strengthening bones and muscles, thirsty for horses to rush to the spring, thirsty for horses to be angry. Thirsty horse rushes to the spring, angry and thirsty horse rides, flies high, floats like a cloud, drifts with the current, draws sand like a cone, gets into the wood, writes a good book without choosing paper and pen, Tang Lin posts gold, draws a silver hook with iron, spits a silver hook with jade, Wang Yang is arrogant, Wang Yang is arrogant, and literary talents are illusory, writing Lei Feng and Lu Xian.