Drag and drop the rest of the elements to their related table column.
将剩下的元素拖放到相关的表列上。
Each primary key value relates to only one record (or no records) in the related table.
每一个主键的值,只能关联到另外一张表的一条或者零条记录。
Ratio to Related table column is filled automatically with the current ratio between the tables.
“相关表的比率”列将自动填充这两个表之间的当前比率。
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