Backend resources can be the hardest to dedicate to performance testing.

也许最大的困难是把后端资源专用于性能测试。

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The data is in XML, so it can easily be processed by backend systems.

该数据是 XML 格式的，所以它可以很容易地被后端系统处理。

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These objects represent data that needs to be removed from backend data structure.

这些对象表示了需要从后端数据结构中删除的数据。

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