他们怨声载道——“我完全不知道屏幕阅读器是如何工作的”，诸如此类。作为设计师，我们始终没能完全了解可访问性或者通用性究竟意味着什么。
Sentiments such as "I have no idea how a screen reader works" demonstrate that as a design community, we still do not fully understand what accessibility-or universality-actually means.
实现了应用程序后，需要了解可伸缩性选项，以确定采用哪个选项以及何时应用。
After you implement an application, you need to understand the scalability options to know which ones to employ and when.
通过结合使用这两种可定制性很强的工具，管理员可以很好地了解集群中发生的大多数情况。
Between these two very customizable tools an admin can get great insight into the multitudes of things happening on the cluster.
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