limited knowledge or experience
Cicadas don't know snow, a Chinese idiom, Pinyin is ch á Nb ú zh ī Xu ě, which means that a cicada is born in summer and dies in autumn and can't see snow. It comes from the theory of salt and iron.
The origin of Idioms
In Huan Kuan's on salt and iron Xiangci of Han Dynasty, "if you don't believe what you don't see, it's like a cicada who doesn't know Xuejian."
Idiom usage
It means that people don't know much about it. You are so ignorant.
limited knowledge or experience
to be one 's bosom friend who is actually not - miù tuō zhī jǐ
Dye the hair and seed the teeth - rǎn xū zhǒng chǐ
use lame arguments and perverted logic - qiǎng cí duó lǐ