Another scenario is that you have a deep nested file that you want to access quickly instead of traverse through one branch by one branch.

另一种情况是，你有深刻的巢式文件，您要访问的快速而不是导线通过一科一科。

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"Every developer is dusting off his old plans and getting ready to put them back into the planning system again, " says Sean Traverse-Healy, the vice-chairman of the eastern branch of the Campaign to Protect Rural England (CPRE).

BBC: Fears for green field sites with latest planning advice