能够轻松地调整内容的显示方式，这一点也很重要；我们需要在开发的迭代过程和未来的任何调整期间保持灵活性。
The ease of adjusting the way the content was displayed was crucial; we needed to remain flexible during iterations of the design and any future adjustments.
它是迭代生命周期与使收集和应用成为可能的适当测试过程的交汇点。
It is the intersection of an iterative lifecycle with an appropriate testing process that makes collection and application possible.
在迭代过程中有数据集汇聚成单点，叫做吸性不动点。
There are data sets in iteration that converge to single points, called attractive fixed points.
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