It's not easy
As a Chinese idiom, Pinyin is s ā nd ě ngji ǔ B ā n, which means that there are many levels and categories with various differences. It comes from Jin Ping Mei CI Hua.
The origin of Idioms
The third and fifth chapter of Jin Ping Mei CI Hua: "Jin Lian said," if it's this kind of thing, I'll say it's shameless. I'll take it from you. "
Idiom usage
As an object or attribute; of many grades and categories.
It's not easy
as brilliant as the sun , the moon and the stars - jiǎo rú rì xīng
contention of a hundred schools of thought - bǎi jiā zhēng míng
like throwing stones into the water - rú shí tóu shuǐ