名词
中文翻译：马拉松游泳
同义词：
['endurance swimming', 'long-distance swimming']
例句：
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1.She decided to take up marathon swimming as a way to stay fit.
她决定开始长距离游泳作为保持健康的方式。
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2.The swimmer crossed the finish line in record time, setting a new world record for long-distance swimming.
这位游泳选手以创纪录的时间冲过终点线，为长距离游泳创下了新的世界纪录。
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3. During the summer vacation, she spent hours practicing her marathon swimming skills.
暑假期间，她花了很多小时练习她的长距离游泳技能。