该模板需要完成的最后一项任务是列出每个游泳队员的事件，但执行此任务的导航有些复杂。
The last thing the template has to do is list the events for each swimmer, but the navigation to do this is a bit more complex.
我们将构建一个模板示例，该模板生成的报告列出所有团队、每个团队的所有游泳队员以及每个游泳队员将要游泳的事件。
We will build up an example of a template that generates a report listing all teams, all swimmers for each team, and the events in which each swimmer will swim.
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