The city stained with green cement is the sentence of which poem?

In the Northern Song Dynasty, Ouyang Xiu's "Song of Spring Thanks to the West Lake", the West Lake returned in spring, and the spring water was green. If the flowers rot, the east wind falls like a nest. Spring comes to join the army like a cloud, and white-haired poems send spring sadly; A glass of wine on the lake, and heaven remains our neighbourhood, is remembered by the world. Wan Li's longing for spring is still affectionate and suddenly shocked by spring; It's snowing outside, Qian Shan is green, and the riverside in February is in full bloom. Teenagers put wine in spring, and today spring is white; The state of foreign land is different from that of people, only the east wind knows the old. Description: This poem was written in 108637. The previous winter, the author was demoted to Yiling.