Investment is needed to reduce the backlog of repairs.
需要投资来減轻积
维修
。
Investment is needed to reduce the backlog of repairs.
需要投资来減轻积维修。
It will take a month to clear the backlog of work.
要花一个月时间才能清理完积。
After her summer vacation,she has got a huge backlog of work to do.
暑假休假以后,
手头有许多积要做。
A huge backlog of work had built up.
一大堆积了起来。
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