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It is illegal to advertise prescription medications in Hedland except in professional medical journals or by mail directly to physicians.

在赫德兰，除了在专业医学期刊上或直接邮寄给医生外，为处方药做广告是违法的。

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Spring will be a period of main battle in professional activities.

春季将会是业务活动的主战场。

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It used to be that players in professional sports could change teams only if they were traded, sold or released.

VOA: special.2010.07.26

In the code of conduct, professional conduct, that we embody by this code here is comparable to what you are expected to adhere to in your professional lives.

在行为准则中，专业准则，这个准则所体现的相当于,你所期待去追求的,在你的专业生活中。

麻省理工公开课 - 固态化学导论课程节选

On other, on other grounds You, a professional economist, do not bring your expertise to bear on this man in evaluating him?

那是站在其他的角度,你可是一名专业的经济学家呢，难道你不,利用自己专业的评价来给他加点分吗？

斯坦福公开课 - 经济学课程节选

However, others express frustration that the Asian community is still hugely under-represented in professional football.

BBC: British Asian footballers bid for breakthrough

The allegations by Mr. Landis triggered a federal investigation into doping in professional cycling.

WSJ: Second Cyclist Accuses Lance Armstrong of Allegedly Using Banned Substances

Though the majors have all the glamour, they are not the richest events in professional golf.

FORBES: The PGA Tour's Biggest Purses