What verses use contrast?

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Chang' an fell, the country was broken, and only the mountains and rivers remained; Spring has come, and the sparsely populated Chang' an city is densely forested.

The contrast in "Light Fat" is famous.

There are thousands of palaces on the shore and new branches of willows. Who are you green for? . I remember a colorful flag floating in the south garden, with thousands of colors, layered on top of each other.

Zhegutian (Xin Qiji) "Once upon a time-when I was strong, I raised a thousand flags and rode across the river for the first time. Swallow the silver beard at night, and the Chinese arrow flies to the golden servant. Now-the spring breeze does not touch the moustache, in exchange for the owner's tree planting book. (Effect)-Highlight the feeling of being an unpaid and ambitious old man. "