The answer is that the tune is high and low: the tune is profound, and fewer people can sing along with it. Old fingers are hard to find. Now the metaphor speech or work is not popular, and few people can understand it. Said by: The Warring States Period Chu Song Yu's "Question to the King of Chu": "There are only a few people who introduce merchants and carve feathers, and those who are mixed with levies, and those who belong to the country are in harmony. It is that its music is high and its harmony is sparse. " Example: When I was in the provincial capital, I only heard people praise Jingyun, but no one ever talked about Yiyun. Do you know?

◎ The fifth chapter of Qing Liu E's Travel Notes of Lao Can: complex sentence pattern; As predicate, attribute and clause; It's ironic