Recall what a sentence in Jiangnan echoes.

The first sentence (Jiangnan is good) and the last sentence (can you not remember Jiangnan) echo each other. "Recalling Jiangnan" Tang Bai Juyi Jiangnan is good, and the scenery has been familiar; When spring comes, the sun rises from the river, the flowers on the river are brighter than red, and the green river is greener than the blue grass. The reason why the word "Yi" in Jiangnan and the word "Lao Zeng" in the poem can't be forgotten also shows that this word has a more important level: setting off the spring scenery in Jiangnan and setting off the spring scenery in the north. The whole poem depicts the spring scenery in Jiangnan with nostalgia. At this time, the author is in Luoyang. Compared with Jiangnan, the spring in Luoyang comes later. The author wrote in Luo Yang's "Wang Weidi" Seven Wonders Cloud: "Flowers are cold and lazy, birds are lazy, and horses are idle in the west. Where did you think before spring, wicker was powerless to Wei? "In the south of the Yangtze River, the rising sun rose, flowers in the river prevailed over fire, but Luoyang was" cold and lazy ",and only the wicker on Wang Wei's levee showed a little spring.