After careful planning and constant persisting, one may be rewarded with success.
周密计划、持续坚持，才有可能成功。
So the question is simple: how are you persisting your XML to a file?
因此，问题十分简单：如何将 XML 持久化存储到文件中去？
Some people lose their weight by persisting in doing exercise regularly.
有的人通过坚持有规律的运动来减肥。
Sometimes it's easy to give up when we don't succeed, instead of persisting.
有时在没有成功的时候放弃而不是继续坚持是非常简单的。
Sometimes it's easy to give up when we don't succeed, instead of persisting.
有时在没有成功的时候放弃而不是继续坚持是非常简单的。
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