On the surface, the reason is that the appreciation of RMB devalues the US dollar, making China's products more expensive and American products relatively cheaper. It is taken for granted that others may buy less China products and more American products, so that the United States can increase employment and reduce foreign trade. But the fact is that many things that China sells to the United States are not produced in the United States. How can we increase employment in the United States? Therefore, "the old American sword is intended to flatter", and the old American selfless heart (human nature) is immortal, which is intended to obliterate China! The old saying in America is-sell dog meat by hanging sheep's head.