It can be used to write, edit, track changes, and rollback to previous versions.

可以用来写作、编辑、修订和回看之前的版本。

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Rollback Capabilities - If deployment of a new package fails, then a rollback to previous versions can be easily performed.

回滚能力-如果部署一个新包失败了，可以轻易回滚到前一个版本。

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Multiple, built-in undo operations: Mercurial's revert, backout, and rollback commands make it easy to return to previous versions of specific files or previous sets of committed changes.

多种内置的撤消操作：Mercurial的revert、backout和rollback命令可以简便地返回到特定文件的以前版本或以前的已提交更改集。

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