PREVIEW
... p> Even within the city, it still feels like the sky outside is covered with a gray haze, never seeing sunlight.
Within the towering city walls, Bai Xiaotang, Lin Yuanyang, and You Le, each carrying 200 pounds of saplings, followed a group of Forest Guards, waiting to leave the city.
This was their training project for the day, to plant Purification Trees in the semi-Pollution Zone.
These Purification Trees are vegetation meticulously cultivated over decades by the resear ...
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