For e. g. though association, aggregation and composition are different types of relationships, all THREE have distinct notations to show them.

例如，虽然关联，聚合和组成不同类型的关系，这三个国家都向他们展示不同的符号。

youdao

For e. g. though association, aggregation and composition are different types of relationships, all THREE have distinct notations to show them.

例如，虽然关联，聚合和组成不同类型的关系，这三个国家都向他们展示不同的符号。

youdao