一级理论和二级理论的区别

Two legs covered with black hair like Optimus Pillars stepped on the middle of the divine city. The entire divine city was shaken up a hundred meters high and then fell down. It collapsed in an instant. The place where the heavenly people lived in the center of the divine city was reduced to nothing, and the distribution The palaces of the eight princes in various places, which were once prosperous, collapsed into ruins, and the capital of science and technology was also completely destroyed!...