教育类节目的目的是既有利于教育又有利于社会。

Educational shows have pro-education and pro-social goals.

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该项目的目的是提供最为灵活和轻量级的运行时。

The goal of the project is to provide the most flexible and lightweight runtime possible.

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取决于项目的目的，可以从一个方向或同时从两个方向检查引用完整性。

This referential integrity can be checked in one or both directions depending on the project goal.

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