#美国国债 US Treasury bonds are key assets in the global financial market and are considered a risk-free investment tool. As the world's largest debtor nation, the United States issues a large amount of Treasury bonds annually, primarily to fund government budget deficits. Due to their high credit rating and liquidity, US Treasury bonds have become a safe haven for global investors, especially during times of economic uncertainty. Recently, the fluctuations in US Treasury bond yields have also reflected changes in market expectations regarding US economic growth and monetary policy. As interest rates rise, the pressure of debt burdens may increase, which could have profound effects on the stability of global financial markets.