An absolute pathname begins with the root directory and follows the tree branch by branch until the path to the desired directory or file is completed.

绝对路径名从根目录开始，通过一个又一个的分支，一直到你要去的目录或者文件为止。

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If you specify a certain file or directory, that file or directory will be updated to match the version currently checked in to the repository on the branch where you are working.

如果指定一个特定文件或目录，则该文件或目录将更新以匹配当前签入工作分支目录的版本。

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The root directory, denoted by a forward slash (/), is at the base of this tree, and each subdirectory off of the root is a branch of the tree.

根目录是这个树的根，由前向斜杠 (/) 表示。 每个子目录都是树的分支。

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