特朗普宣布对进口重型卡车加征25%关税

Group 1 - The core viewpoint of the article is that starting from October 1, the U.S. will impose a 25% tariff on all imported heavy trucks, as announced by President Trump on his social media platform [3]. Group 2 - The article highlights the potential impact of this tariff on the automotive industry, particularly on manufacturers of heavy trucks who rely on imports [3]. - It also notes that this decision may lead to increased costs for consumers and could affect the supply chain dynamics within the industry [3].