7月31日电，美联储主席鲍威尔表示，6月份核心PCE可能同比上升2.7%，关税正在推高一些商品价格。

Group 1 - The core point of the article is that Federal Reserve Chairman Jerome Powell indicated a potential year-on-year increase of 2.7% in the core PCE for June, with tariffs contributing to rising prices of certain goods, while long-term inflation expectations remain aligned with the 2% target [1] Group 2 - The mention of tariffs suggests that trade policies are influencing commodity prices, which could have implications for various sectors reliant on these goods [1] - The alignment of long-term inflation expectations with the 2% target indicates a stable outlook for monetary policy, which may affect investment strategies across different industries [1]