A preview now shows three columns with subject, number, and last modification date.

预览现在显示三列，它们是主题、数量和最后一次修改日期。

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Optionally, you can list additional information for each URL, including its last modification date, its change frequency, an expiration date, and a priority value.

您可以选择性地为每个URL列出额外的信息，包括URL的最后修改时间、更改频率、终止日期和优先值。

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The metadata cache contains the full path names of directories and files as keys and metadata (e.g. file length, last modification date, and whether the key is a file or a directory) as values.

元数据缓存器将目录和文件的路径名称保存为键，将元数据保存为值（如文件长度、最后修改时间、标记该条目是文件还是目录等）。

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The metadata cache contains the full path names of directories and files as keys and metadata (e.g. file length, last modification date, and whether the key is a file or a directory) as values.

元数据缓存器将目录和文件的路径名称保存为键，将元数据保存为值（如文件长度、最后修改时间、标记该条目是文件还是目录等）。

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