主语Concerns that cuts in defense spending could erode the U.S.military's technological edge over rivals such as Russia and China谓语 are in part driving 宾语the Pentagon's plans 状语to slash troop levels and retire aging weapons.
关于国防经费削减将弱化美国相对于俄罗斯、中国等对手之军事技术优势的担心,在一定程度上促使五角大楼计划大幅削减部队规模并退役老化的武器装备.