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Chapter 273 five months
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... pment makes breathing more smooth.
The underground space is beyond Su Xiaofan's imagination. This is not a laboratory with only two to three hundred square meters, but an underground base covering an area of tens of thousands of square meters.
The underground floors are all more than ten meters high. I don’t know who wrote it. On the dome of the underground space, the latest technology is applied to imitate the sun, moon and stars.
As time changes, the view of the do ...
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