"To learn" (Qing) Peng Duan Shu Shi is difficult? If it is, the difficulties are also easy, and if it is easy, it is also difficult! Is it difficult for people? If you learn, the difficulties are also easy, and if you don't learn, it is easy! Suspent, there is two. It is a poor, and it is rich. It, the poor and the rich are: "What is the South China Sea?" The rich: "I want to buy a boat in my year, I am still uncomfortable. What is it?" The poor replied: " I have a bottle! "Yue, the poor, the poor is also in the South China Sea, with the rich, rich. I went to the South China Sea in the West, I don't know how thousands of miles, the rich people can't be, and the poor is here! The foreigner of the old people, is it less like?