But each resource - a file or folder - in this source tree can have complicated version graphs, based on the branches created for each resource. (So in this sense a VOB is like a virtual repository).

• 但是每一个资源，一个文件或是一个文件夹，在这棵资源树中都对应于很复杂的版本图，这些版本图是基于对每个资源所创建的分支。（这么看起来，VOB像一个虚拟库。）