These categories do not need to be the same as the top-level categories.

这些类别不必与顶级类别相同。

youdao

A news site might only change its list of top-level categories once a month.

新闻网站可能每个月只修改顶级分类列表一次。

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Which categories are the top-level categories, and which are sub-categories?

哪些类别是顶级类别，哪些是子类别？

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The title for the Black Satellites is the first for an African team at the Under-20 level, despite the dominance of African nations in the youth categories over the last decades.

VOA: standard.2009.10.17

Ambulance staff reported the lowest level of job satisfaction of any group in the NHS and a relatively high level of concerns in several categories.

BBC: NHS Wales staff survey: Only 52% happy for family treatment

You can then customize the suggestions based on your level of interest in various categories (like nature or culture), and then you can refine the results further by telling the site you are only interested in animal attractions and parks.

BBC: Tools to plan your itinerary faster

Stroud argues that it's a mistake not to include older consumers in an overall marketing strategy that divides potential buyers into worthwhile categories such as education level, race, zip code, income and buying preferences.

FORBES: Sell Old!