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。
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。
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。
The communicative approach is a foreign teaching method based on the function of language as the key link project, focus on training the language communication skills of the learners.
交际教学法是以语言的功能项目为纲，着力培养学习者语言交际能力的一种外语教学方法体系。
Link of choosing the procedure to optimize: the key business procedure of the foreign trade of the clothing, operation of the order and quality control.
选择流程优化的环节：服装外贸的核心业务流程，订单运作和质量控制。
Link of choosing the procedure to optimize: the key business procedure of the foreign trade of the clothing, operation of the order and quality control.
选择流程优化的环节：服装外贸的核心业务流程，订单运作和质量控制。
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