You can also establish a foreign key in a secondary table to link with a primary key in a primary table.

您还可以在次表中建立外键，以链接主表中的主键。

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Create a foreign key to link this new table with the existing employee table.

创建一个外键，以便将这个新表与已有的雇员表相连接。

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The <many-to-many> tag's column attribute specifies the foreign key column in the link table that relates the link table to the mapping table for the target class.

<many-to-many>标签中的column属性用来指定连接表与目标类的映射表链接的外键。

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So far there have been relatively few attempts to link economic- and foreign-policy issues by the key transatlantic participants.

ECONOMIST: Will there ever be a breakthrough?