It means to borrow an old saying to pretend to be B. Zuo Zhuan said that if people abandon ethics, evil spirits will begin to flood. What is unchangeable? What remains unchanged is ethics. Ancient people pay attention to ethics, and men and women are not close. Nowadays, people don't want this concept, physical contact is nothing, and they went to check in as teenagers. If you don't honor your parents, you will lose your wife and mother. Newlyweds advocate being alone. Many young people who entered the city left the old people in the country. Many people in the city are separated from the old people when they get married. I'm afraid old people will disturb their elegance. What does it mean to sign with this? Explain that this person is either lamenting social chaos or jealous of social chaos. So it's used to sigh or pretend to be B.