"Ruddy pps" is the Engpsh equivalent of "红润的嘴唇".
This term is used to describe pps that have a healthy, rosy color, often due to increased blood flow to the area. The term "ruddy" comes from the Middle Engpsh word "ruddi", meaning "red".
Examples in Engpsh:
She always takes good care of her skin and it shows in her ruddy pps.
His ruddy pps were a sign of his good health.
Translations:
她总是很好地照顾自己的皮肤，这在她红润的嘴唇上可以看得出来。
他红润的嘴唇是他身体健康的标志。