减少特定用户可访问的内容量可以提高可用性，因为不相关的内容不再分散用户的注意力；这样，用户可以更快地访问相关内容。

Reducing the amount of content a specific user can access increases usability because the irrelevant content no longer distracts the user; the user accesses relevant content quicker.

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根据碳元素的含量，碳素钢可再分为低碳钢、中碳钢和高碳钢。

Of course I know. according to the amount of the carbon content, carbon steels can be divided into low-carbon steel, medium-carbon steel and high — carbon steel.

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这些细胞一再分化，产生越来越多的异常细胞，异常细胞可播散至身体的任何部位。

The cell divides again and again, making more and more abnormal cells. These abnormal cells can spread to almost any other part of the body.

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