求翻译：The Role of Past and Current Strenuous Physical Work in the Association Between Professional Car Driving and Chronic Low-Back Syndromes是什么意思？

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悬赏分：1 - 离问题结束还有

The Role of Past and Current Strenuous Physical Work in the Association Between Professional Car Driving and Chronic Low-Back Syndromes

问题补充：

匿名	2013-05-23 12:26:38 专业汽车驾驶与慢性低背综合征之间的关联过去和当前剧烈体育工作的作用

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