C610 Dashi

Chen Ling took out a self-made pencil, it was small and practical, much more flexible than a brush. He thought for a bit, if he were to draw out a steam engine, train, and ship, it would be unrealistic, and the other party would not be able to accept it.

Even two thousand years later, at the end of the Qing Dynasty, when the people saw the machines and toys, they were shocked