Of course. According to public information, US Treasury bonds can be bought and sold freely, and of course they can be reduced or sold at any time. U.S. Treasury bonds are U.S. government bonds, which are issued by the U.S. government to the whole world, circulate around the world, and can be sold to anyone who is willing to buy them in the financial market. The price is determined by the market price at that time. At present, China and Japan hold the most US Treasury bonds.