世风不古[shì fēng bù gǔ]
词典Public morals and mores are no longer what they were in the good old days.
词典世风不古
词典Social practices have deteriorated.：世风不古。
世风不古[shì fēng bù gǔ]
Public morals and mores are no longer what they were in the good old days.; Social practices have deteriorated.