Dr.Jennifer Ashton: This is the most prevalent, common incident and ailment and it's also the most difficult to treat.

珍妮弗·阿什顿医生：背痛是最普遍、最常见的问题和疾病，也是最难治的病。

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Take, for example, a common incident during a football game. The quarterback is hit, falls backwards, and bangs his head on the turf.

以橄榄球赛比较普遍的事件为例，四分卫触地得分，朝后方倒下，其头部就会猛烈撞击到草坪上。

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The report included the information that now is common to incident reports in which Western forces fire.

这份报告包含了盟军事故报告中普遍存在的信息。

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Last month, the singer was cautioned by police after admitting a common assault after an incident in Camden, north London.

BBC: No drug charges for Amy Winehouse

That incident was common knowledge round the state for months, and Mr Fields had promised an explanation at the end of the trial.

ECONOMIST: Louisiana politics

The Former Welsh Secretary Ron Davies made an impassioned speech to the House of Commons following the incident on Clapham Common which led to his resignation.

BBC: News | UK Politics | Ron Davies's speech in full