Not to mention Nanzhao, even in the Central Plains, where there is a lot of land and resources, it is very laborious to carry out such a large project.

At that time, the people faced the loess with their backs to the sky, and the sun rose and rested, and they had exhausted their energy for simple survival, so where was there any spare energy to build such a project.

And if you ignore the feelings of the people and force them to work, it is also easy to cause problems.

For example, Qin Shi was ......

"I am the Spirit Slayer" Chapter 507 The Dragon Girl is hitting in her hand, please wait a moment,

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