When naming the quadruplets, the last character is a four-character word or idiom. Which four characters are the most suitable? The surname is Qin. It sounds nice and has meaning.

Jade is pure and pine is as pure as jade, as pure as pine. Describes high moral character.

Hold the treasure in your arms: hold it in your arms. It is a metaphor for people with good moral character and talents.

Bingbo Autumn Moon is a metaphor for a person’s moral integrity.

Chaoyang Mingfeng is a metaphor for a person with outstanding moral character, integrity and courage to give advice.