他游泳是为了教导人们保持水清洁的重要性。

He swims to teach people about the importance of keeping water clean.

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如果你改变你看待事物的方式，你会发现卢克有很多可能性，他可以像我们一样游泳、骑自行车甚至是铁人三项。

If you just change how you see things, you can see there are many possibilities where Luke can do swimming, biking or even triathlons, like we do.

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为了测试他们这些发现的有效性——也就是闯迷宫路线的记忆的增强是由应激性游泳，而并非是其他因素所导致的——研究人员实施了一系列的补充实验。

To test the validity of their findings-that the memory for navigating the maze was enhanced by the stressful swim and not other forces-the researchers conducted a series of additional experiments.

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