Wang Yelin thought for a while, and said to Zhuang Jing: "Can you tell me more specifically?" ”

"In fact, it's about building a dungeon deep underground! In addition to the basic living conditions, it can also have a certain production and supply capacity! For example, there can be a production plant for various materials underneath, large-scale soilless cultivation and planting, and there can also be underground water source purification facilities......

"Rebirth of the Last Son-in-law" Chapter 123 The mutant mountain rat is hitting in the hand, please wait a while,

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