According to the latest international capital flow report (TIC) released by the US Treasury Department on July 16, as of the end of May this year, China held US$ 801500 million in US Treasury bonds. It is the first creditor country of the United States.

Of course, national debt bears interest. Not interested in buying it for what? There's nothing we can do. There is a huge surplus in foreign trade every year. A large number of dollars in hand depreciated. There are not so many things to buy for him. You can only buy government bonds, at least with some interest.