Science and Technology*************

It was so loud, but the result was still loud thunder, light raindrops, and nothing. There are thousands of inventions in all walks of life, all made by oneself. How many can you invent if you are exhausted?

The author made a mistake. The more glass you make, the less money you get from selling it. Lao Zhu didn't know this because he had done this before, but as a time traveler, how could you not know this?

Come on! ! ! ! !

Come on, I'm optimistic about you. [Laugh]