Here we have a list of String classes and so only one column.

在这里，我们使用的是一个String类列表，因此只有一个列。

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Its final attribute, roles, references a list of String values identifying the application-specific roles associated with the corresponding user.

其最后一个属性roles引用一列string值，这列值标识与相应用户相关的、特定于应用程序的角色。

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Typically, Asia's moguls list only part of their empires, while maintaining a string of affiliated private companies.

ECONOMIST: Asia��s stockmarket nightmare

The message contained a search string that, when used on Google, returned a list of links to 1.32 million Facebook accounts.

BBC: Facebook flaw bypasses password protections