美股迅速跳水，道琼斯指数跌0.63%，标普500指数跌0.69%，纳斯达克综合指数跌0.79%

Group 1 - U.S. stock market experienced a rapid decline with the Dow Jones Industrial Average falling by 0.63% [1] - The S&P 500 index decreased by 0.69% [1] - The Nasdaq Composite index dropped by 0.79% [1]