What does the "city" of pommel horse mean?

"City", a noun used flexibly as a verb, means to buy.

"City pommel horse" means: go to the market to buy saddles and horses.

Said by: Mulan's poem, which was unknown in the Southern and Northern Dynasties.

Grandpa has no eldest son, Mulan has no eldest brother, and she is willing to be a pommel horse for the city. From then on, she will sign for him. Buy horses in the east, saddles in the west, reins in the south and whip in the north.

My father has no eldest son, and I have no brother. It is for this reason that Mulan is willing to go to the market to buy saddles and horses, and has been fighting instead of her father ever since. Buy horses, saddles, cushions under saddles, chews, reins and whips everywhere in the market.

Extended data:

Mulan Poetry is a long narrative poem, which represents the outstanding achievements of Yuefu folk songs in the Northern Dynasties. The age and author are unknown. It is generally believed that it originated in the Northern Wei Dynasty and was created by the people. It tells the story of a girl named Mulan, who disguised herself as a man, joined the army instead of her father, made meritorious deeds on the battlefield, refused to be an official after returning to Korea, but begged to go home for reunion.

This poem enthusiastically praised the strange girl's hard-working and kind quality, her enthusiasm for defending her country, her heroic fighting spirit and her dignified and calm demeanor. It not only reflects the general martial spirit of the nomadic people in the north, but also shows the people in the north's aversion to the long-term separatist war and their desire for a peaceful and stable life.

Its praise of Mulan also impacted the prejudice of the patriarchal society. It is "absurd and poetic" (in Shen Deqian), full of romance, vigorous and simple in style, and basically maintains the characteristics of folk songs.

The story of Mulan is deeply rooted in people's hearts and widely circulated. According to Taiping Universe, there are Mulan Mountain, Mulan Township and Mulan Temple in Huanggang County, Huangzhou (now Huanggang, Hubei). According to local records, temples were built to worship Mulan in Bo County, Anhui Province, Shangqiu, Henan Province and Wanxian County, Hebei Province. Until today, the image of Mulan on the stage screen still inspires people's patriotic enthusiasm.

Baidu Encyclopedia-Mulan Poetry