联机文档更新和修正更快，因此是首选。

Online documentation is preferred due to the availability of faster updates and corrections.

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请参阅系统的联机文档，以查找具体的说明。

See the online documentation for your system to find specifics.

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在Grails的联机文档中，可以找到一对一和多对多关系的示例，请参阅参考资料。

You can find examples of one-to-one and many-to-many relationships in the online Grails documentation; see Resources.

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