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1·So, how do we map a many-to-many association?

那我们怎样映射多对多关系呢？

2·Each many-to-many association maps to a distinct table.

每个多对多的关联映射到唯一的表。

3·A many-to-many association is mapped to a distinct table.

一个多对多关联被映射到一个单独的表。

4·We didn't bother mapping this many-to-many relationship.

我们不必苦恼映射多对多的关系。

5·The many-to-many relationship exists in the element called categories.

多对多关系存在于称为 categories 的 元素中。

6·There is really a many-to-many relationship between feeds and accounts.

提要与帐户之间存在多对多关系。

7·Many-to-many interactions: one or more events can affect one or more subscribers.

多对多的交互：一个或多个事件会影响一个或多个订阅者。

8·Place a many-to-many relation in the entity with the fewest number of elements.

将many - to - many关系包含到实体中，但减少关联元素的数量。

9·Add a new participant to a given instance (used for many-to-many relationships only).

将新参与者添加到给定实例(仅用于多对多关系)。

10·JPA supports one-to-one, one-to-many, many-to-one, and many-to-many relationships.

JPA支持一对一、一对多、多对一和多对多关系。

多对多

1·If you have some experience modeling data for relational databases, you know that many-to-many relationships between different relational entities appear all the time.

如果您有关系数据库数据的建模经验，那么您就会知道不同关系实体之间的多对多关系随时会出现。

2·Many-to-many interactions: one or more events can affect one or more subscribers.

多对多的交互：一个或多个事件会影响一个或多个订阅者。

3·When complex, embedded software is involved, this leads to a many-to-many decision tree with thousands — perhaps millions — of possible allocations.

当涉及到复杂的、嵌入式软件时，就会导致一个上千——或许上百万种可能分配的多对多决策树。

4·Each many-to-many association maps to a distinct table.

每个多对多的关联映射到唯一的表。

5·Many-to-many relations require a special mapping and are handled individually in another relation.

多对多关联需要一个特殊映射，它在另一个关联中被单独处理。