美国4月进口价格指数(除汽油)环比 0.4%，预期 0.1%，前值 0%。

Group 1 - The core point of the article is that the U.S. import price index (excluding gasoline) increased by 0.4% in April, which is significantly higher than the expected increase of 0.1% and the previous value of 0% [1] Group 2 - The increase in the import price index may indicate rising costs for imported goods, which could impact inflation and consumer prices in the U.S. economy [1] - The data suggests a potential shift in import pricing trends, warranting close monitoring by analysts and investors [1] - The unexpected rise in import prices could influence monetary policy decisions by the Federal Reserve in the near future [1]