Shoulder pain is a common phenomenon in competitive swimming.

肩痛在竞技游泳中是一种常见现象.

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But competitive swimming is just over one hundred years old.

但是竞技游泳只有一百多年的历史.

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Modern competitive swimming originated in the 19 th century.

现代竞技游泳始于十九世纪.

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KAREN BARLOW : Athens 50 - metres freestyle finalist, Michelle Engelsman, recently retired from competitive swimming.

雅典奥运会50米自由泳决赛参赛者MichelleEngelsman最近从竞技游泳项目上退役.

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