What did the coachman swallow? What is this?

The rickshaw puller swallowed coarse grains and risked his blood.

"A rickshaw driver swallowed coarse grains and blood came out; He wants to sell the greatest strength and get the lowest return; Standing in the lowest place in the world, waiting for all the people, all the laws, all the hardships. " Twelve pieces of Lao She's collection Camel Xiangzi.

Shu Qingchun (1February 3, 899-1August 24, 966) was born in Beijing, China. He is a modern novelist, a famous writer, an outstanding master of language and a people's artist. He is the first writer in New China to win the title of "People's Artist".