Sometimes primary group relationships evolve out of secondary group relationships.

有时主要的群体关系从次要的群体关系演变而来。

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Notice that they contain fields corresponding to the database table columns and that the primary keys and relationships have been set (Figure 19).

注意它们包含了与数据库表列，以及设置的主关键字、关系相对应的区域(图19)。

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Inter-table relationships, primary key columns, and other information about the target data is specified through the metadata object as well.

表间关系、主键列和其他有关目标数据的信息也是通过元数据对象指定的。

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Our families are our primary relationships, yet we spend almost no time trying to improve them.

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Expansion requires developing relationships with both primary care doctors and specialists in each new location.

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For most people, this means changing your primary checking account and bank relationships.

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