I remember very well. On the boat back from Hong Kong to Shanghai, we saw a film adapted from Lu Yao's novel. It was about the subject of rural China. At that time, the countryside was very poor. Some people brushed their teeth with tooth powder, and the villagers still felt very fresh. I lamented with my wife, when will China develop? But I did not expect that the subsequent development rate was so amazing.Projects that make money at home,