[] a quantity of work that should have been done already, but has not yet been done 积压的工作；积压待办的事务◆The insurance company is still working to clear the backlog of claims. 保险公司仍在清理积压的索赔个案。◆A huge backlog of work had built up. 积压的工作越来越多。⨁to clear / reduce a backlog 清理／减少积压的工作⨁a backlog builds up / develops / grows 积压的工作增多／加重／增加⨁a huge / large / mounting backlog 繁重的／巨大的／越来越多的积压工作