smooth and fair
As a Chinese idiom, the Pinyin is B ī NGJ ī y ù g ǔ, which means that muscles and bones are like ice jade. It describes a woman's clean and smooth skin. It's from Chuang Tzu's xiaoyaoyou.
Idiom explanation
Ice: crystal clear.
The origin of Idioms
Chuang Tzu's Xiaoyao Tour: "in the mountain of scorning Gu, there are gods and men living there. Their skin is like ice and snow, and they are graceful as virgins."
Idiom usage
Sometimes it describes the bright and clean plum, Narcissus, lotus and so on. example change the fetus, the heart spits out the fragrance. The second part of Zhang Shouqing's honglihua in Yuan Dynasty
smooth and fair
everything in good order and well arranged - yǒu tiáo bù wěn
A donkey's lips are not the same as a horse's - lǘ chún bù duì mǎ zuǐ
hard to distinguish good from bad - lán ài nán fēn