On the differences
In Chinese, Pinyin means x ī w ē ICH á y ì, which means careful observation and identification. It comes from colon Fu by he Jingming of Ming Dynasty.
The origin of Idioms
He Jingming's Ode to the colon in the Ming Dynasty: "there are trees and grasses crossing the stems; there are strong souls and clean spirits, and there are virgins; there are subtle and different things, and there are such things; there are spiritual things, and you can see your heart."
Idiom usage
As a predicate, attribute, etc
On the differences
friendship between old and young people - wàng nián zhī jiāo
get along swimmingly with each other - shuǐ rǔ jiāo róng
insatiably covetous and gluttonous - tān yù wú yàn
expect the reality to correspond to the name - xún míng kè shí