不，是一本我之前没听说过的书，我很久没有这么疲劳了。
No. A book I didn't hear of before. I haven't felt so washed out for ages.
如果你以前还没听说过Personas或者在过去忽略过它，我想现在是时候测试测试他们了。
If you haven't heard of Personas before or have ignored them in the past, we think it's time you checked them out.
但如果我看到的那个证明我听都没听说过，亦或看上去是错的或不可能的情况，我就要挖掘更多的东西了。
But if I see the explanation doing something that I've never heard of, or that seems wrong or impossible, then I'll dig in some more.
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