Some companies use both - a global top navigation on all pages and a secondary navigation bar for specific site sections.

许多公司两种都用，所有页面都采用一级导航条，并特定部分加上二级导航条。

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Far too often, blog navigation focuses on pages and leaves the categories as a secondary thought somewhere along the sidebar.

在大多数情况下，博客导航放在页面的同时将分类作为第二导航放在页面的边栏。

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