从星期一到星期六，这条路一直川流不息，但是星期日没什么车辆来往。
During the week, the road is very busy but there is very little traffic on Sundays.
在星期六发生故障时，可以恢复上个星期日的全备份并应用从星期一到星期六的delta备份。
In the case of a failure on Saturday, you could restore the first Sunday full backup and apply the delta backups from Monday until Saturday. See the diagram below.
在星期六发生故障时，可以恢复上个星期日的全备份并应用从星期一到星期六的delta备份。
In the case of a failure on Saturday, you could restore the first Sunday full backup and apply the delta backups from Monday until Saturday. See the diagram below.
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