Wu Gou means

The Wu Gou is a legendary weapon that has always been associated with knights, wine, poetry and the desire to gallop on the battlefield.

From:

Thirteen Poems of Nanyuan·Part 5

Author Li He? Tang Dynasty

Why don’t men wear Wu Hook? Collect fifty states in Guanshan.

Please come to Lingyan Pavilion for a while. If you are a scholar and a marquis of ten thousand households?

Translation:

Why don't the men wear weapons and take over the fifty states of Guanshan? Please go up to the Lingyan Pavilion with paintings of the founding heroes to see which scholar has ever been named a prince with thousands of households in the city?

Appreciation:

The poet asked: Among those who were granted the title of marquis and worshiped the prime minister, and whose portraits were painted in Lingyan Pavilion, how could any of them be born as scholars? Here the poet does not use declarative sentences but uses question sentences, and the meaning of complaint becomes more intense.

It seems that the poet is setting off the necessity of joining the army from a negative perspective, but in fact he is further expressing the anger of being unappreciated. The transition from high-spirited and exciting to melancholy and mournful shows not only the contrasting brushwork, but also the ups and downs of the rhythm, and the reverberating posture in the rush. In this way, the poet expresses his complex thoughts and feelings in the rhythm of the poem, allowing readers to deepen their understanding and feelings of the theme from the infection of the rhythm.