Is rain in Mao Mao an idiom?

Rain in Mao Mao is an idiom. It means that the rain is like cow hair, which means that the rain is thin and dense.

The source is Liang Shaoren's "Two Theories on Autumn Rain Temple" in Qing Dynasty, Volume 5: "The drizzle of cattle hair sends the setting sun."

Synonymous with oblique wind and drizzle; The antonyms are rainstorm, downpour and downpour.

The idiom "emotional color" is a commendatory term.

Sentence: 1. Rainy solar terms, I bypassed the drizzle, avoided the pouring rain, braved the storm, braved the bullets, sweated all the way, and finally delivered the umbrella. May friendship protect you from the wind and rain, and my mood will turn into rain forever.

2. In the warm spring season in bloom, the continuous rain in Mao Mao makes people feel heavy, and everything looks disgusting.