一级理论和二级理论的区别

After Zhang Xia's guidance, Lu Feng figured out the whole thing in an instant. He was not a stupid person, but he would always make mistakes easily on something. For example, in terms of relationships, even though he always talks a lot and flirts with women all the time, he is actually an emotional idiot. He has lived in the mountains for many years and it is difficult to understand the sexual intercourse between men and women....