On the street
Brush: with a writing brush; Street Patrol: walking on the street. It refers to the poor literati selling poems in the street.
Idioms and allusions
[explanation] brush cutting: with a brush in; Street Patrol: walking on the street. [source] yuan · Zheng Tingyu's the second fold of "looking at the money slave": "I'll leave the Castle Peak for fear that there will be no firewood. I'll make a tour of the streets."
Discrimination of words
It refers to the poor scholar
On the street
deceive the public so as to build up a reputation - qī shì dào míng
when water flows , a channel is formed - shuǐ dào qú chéng