1. There is a backlog of repairs and maintenance in schools. 学校里有积压下来等待处理的维修和养护工作。
2. A number of people have been employed to deal with the backlog of work. 已雇来一些人处理积压的工作。
3. Today's economic slump could well generate a similar backlog of couples whose relationships have been irreparably ruined. 如今的经济衰退很可能会产生类似的夫妻积压，导致他们的关系破裂且难以弥补。
4. All major airports have now reopened and airlines are beginning to cope with the backlog of thousands of stranded passengers. 所有主要机场现已重新开放，航空公司开始处理数千名滞留旅客。
