Yestino - The Signal · Big Fourhttps://yestino.com/zh-CN/entities/big-four-641a61与 Big Four 相关的全部事件zh-CNTrump is moving to let ranchers process their own meat, calling Big Four a monopolyhttps://yestino.com/zh-CN/events/trump-is-moving-to-let-ranchers-process-their-own-meat-calli-79c7edhttps://yestino.com/zh-CN/events/trump-is-moving-to-let-ranchers-process-their-own-meat-calli-79c7edFri, 28 Aug 2026 18:20:39 GMTFour companies control about 85% of U.S. 来源：Quartz