通常，那些数据应该存放在一张子表中，子表的外部关键字关联到表contacts。

In general, that data would live in a child table with a foreign key relation to the table contacts.

youdao

通常，那些数据应该存放在一张子表中，子表的外部关键字关联到表contacts。

In general, that data would live in a child table with a foreign key relation to the table contacts.

youdao