GDP增长受通货膨胀和进出口的影响。因为关税，美国的进口大起大落，剔除通膨和进口，美国“最真实GDP”，年增长为1.6%

https://www.investopedia.com/gdp-revision-shows-us-economy-grew-more-than-previously-thought-in-second-quarter-11816895