[] 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