Retrieve the name of Category 4.

返回类别4的名称。

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The data we store in each menu item object is an array containing only one element: the name of the category.

我们储存在每个菜单项对象中的数据是一个仅包含一个元素的数组：类别名。

youdao

Before you start your research you might want to narrow the field by thinking about what category of name you're searching for.

严格来说，在你开始调查之前你可能需要考虑你想要寻找的名字的类别来缩小范围。

youdao

Many people having a last name of Jain also fall in this category.

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