1. Poetry: The clouds over Qinghai have obscured the snow-capped mountains, and I stand in the lonely city looking at the Yumen Pass in the distance. Outside the Great Wall, his helmet and armor have been worn through hundreds of battles, and he vowed not to return until he defeated the enemy in the west.
2. Original text: The snow-capped mountains are covered by long clouds in Qinghai, and the lonely city looks at Yumen Pass in the distance. Yellow sand can wear golden armor in a hundred battles, and Loulan will never be returned until it is broken.
3. This poem reflects the heroic ambition of the border guards to kill the enemy and defend the country. The first two sentences of the poem describe the border scenery to exaggerate the atmosphere of war. The last two sentences summarize the brutal war life that the border guards have participated in for a long time and their determination to defeat the enemy. The magnificent scenery outside the Great Wall is integrated with the magnificent ambitions of the soldiers, with a majestic spirit and a majestic style. "The yellow sand will wear golden armor in a hundred battles, and Loulan will never be returned until it is broken." is often used to express the heroic spirit and strong will of killing enemies and defending the country. Dai Shulun, a poet of the mid-Tang Dynasty, wrote a majestic poem: "If I wish to live long enough to serve the country, why should I be born in Yumen Pass?"