利用一天的时间，分门别类的记下你每分每秒都在干什么。
For one day, keep a notebook with you and write down how you spend every minute of that day, in chunks, of course.
一个最好的例子就是商务网站，拥有大量的商品分门别类的存放着。
An excellent scenario is e-commerce websites, in which a large variety of products is grouped into logical categories.
通过本《战略》目标，联邦铁路局建议对与轨道客运服务相关的最大运营速度，以及上述其他因素予以分门别类的定义。
Through this strategy, FRA proposes to define categories or "tiers" of rail passenger service tied to maximum operating speeds and the aforementioned factors.
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