作了记号的书，通常是读者认真思考过的书。
当您认真思考过本文后，您的网站和应用程序应当有所改进，当然，如果只是盲目照搬，那当然不行。
Your sites and apps should be better because you thought about this article, not just because you blindly put it into practice.
这里的问题是，许多人根本就没有认真思考过这个问题。
The problem here is that many people just haven't stopped to think about it at all.
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