《梦溪笔谈·讥谑》
杜甫在《武侯庙柏》诗中说： 霜皮溜雨四十围，黛色参天二千尺。 
杜甫《武侯庙柏》诗云： 霜皮溜雨四十围，黛色参天二千尺。 
Du Fu said in his poem "Cypress at Wuhou Temple": "The frost skin drips rain around forty围, the indigo color blends with the sky for 2000尺."