an accumulation of jobs not done or materials not processed that are yet to be dealt with (especially unfilled customer orders for products or services)
the large log at the back of a hearth fire
something kept back or saved for future use or a special purpose
Verb:
accumulate and create a backlog
双语例句
1. There is a backlog of repairs and maintenance in schools.
对各学校的修缮和维护工作积压了一堆。
来自柯林斯例句
2. We are faced with a backlog of orders we can't deal with.
