Reciprocity works in the same that permission-based marketing does; you give something to get something at every step in the process.

“互惠”和基于许可的行销的运作方式是同样的，在这个过程中每一步你都要给出某样东西来获得某样东西。

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Echoecho routes around this problem by using a very nifty permission-based solution.

双重回音通过使用一流的许可方式来解决这个问题。

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Nearly every modern OS makes use of a bit-masking permission-based model that deals with the control of resources by principals, based on principals and groups.

几乎每个现代操作系统都使用基于位屏蔽权限的模型，该模型基于主体和组按主体处理资源控制。

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In return, you, the marketer, gain permission-based access to his social profile information, building a lasting relationship with the user.

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Younger outfits, such as Oblix, Netegrity and Access 360, sell "permission-based" software that lets local managers feed information into a central database rather than have a single administrator track everyone.

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Of course, all of this is permission-based.

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