美股三大股指走低，道指跌幅扩大至1.13%，纳指、标普500指数跌约1%。

Core Viewpoint - The three major U.S. stock indices declined, with the Dow Jones Industrial Average falling by 1.13%, while the Nasdaq and S&P 500 indices dropped approximately 1% each [1] Group 1 - The Dow Jones experienced a significant drop, indicating a broader market downturn [1] - The Nasdaq and S&P 500 also faced declines, reflecting negative sentiment across major sectors [1]