C3120 The Strictest Test Test Tests

Of course, Qin Guan wouldn't describe this future world because it was hard to describe it. He didn't even know if this world was good or bad.

Right now, Han Country was still the era with the most vigorous labor force. During the period of population dividends, in many countries, the birth rate had dropped to the lowest. It welcomed the age of the population and society. In that era