Developers, editors, and writers often need to compare two versions of an XML document to track the changes.
开发人员、编辑人员和作者通常需要比较XML文档的两个版本,以跟踪更改。
The company may want to compare their current month's performance each day with that of the previous month's performance to see if they are on track.
这个公司还可能希望对当月每天的性能与上月性能进行比较,以确定它们是否在控制范围内。
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