更新到 SVN 中的特定修订版?

我执行了一个 svn co -r XXX ....我删除了一个文件，然后 [意外地] 执行了 svn up.更新到 HEAD，所以我在 XXX 丢失了我的更改.

I performed an svn co -r XXX .... I deleted a file and then [accidentally] performed svn up. That updated to HEAD, so I lost my changes at XXX.

是否可以针对特定修订版执行更新?如果是这样，如何?

Is it possible to perform an update against a particular revision? If so, how?

相关，是否可以撤消对 HEAD 的更新，以便我返回 XXX + 本地修订版?

Related, it is possible to undo the update to HEAD so I go back to XXX + local revisions?