拖后腿

drag(one’s feet);be a drag on sb;hold sb back;be a laggard to;hinder sb;impede sb
调查结果表明，他的竞选伙伴拖了该党候选人的腿。The surveys found his running mate to be a drag on the Party’s ticket./面临一成不变的制度～face the drag of a system never given to change/官僚主义～ bureaucratic foot-dragging/拖美国的后腿be a laggard to the US