What are the poems at the beginning of Word City?

All the plants are in spring —— Tang Du Fu's "Spring Hope"

Separated by the wall of three Qin dynasties-Tang dynasty bid farewell to the governor and went to Shu/sent to Shu.

Many Surroundings in the South of the City —— Join the Army, Part Two by Tang Li Bai

Changing the Flag for the Head of the City —— Modern Lu Xun's Accustomed to the Long Night in Spring

The town in the valley is getting colder and colder —— Reading Tang Zuyong's Seeing the Snow Peak in Central South