Survey or original research results can serve the same purpose, if they turn out to be useful for the target audience.
如果调查和研究结果对目标访问者有用，那么它们也能起到同样的作用。
Professor Philippe Even of the Institut Necker, a research body, reckons that, of 5,000 or so drugs available in France, "nearly half serve no useful purpose", and many of those may be harmful.
研究机构InstitutNecker的教授菲利普(PhilippeEven)估计，在法国5000多种可以买到的药品中，“将近一半都没有治疗作用”；其中一些还对身体有害。
Professor Philippe Even of the Institut Necker, a research body, reckons that, of 5, 000 or so drugs available in France, "nearly half serve no useful purpose", and many of those may be harmful.
研究机构InstitutNecker的教授菲利普(PhilippeEven)估计，在法国5000多种可以买到的药品中，“将近一半都没有治疗作用”；其中一些还对身体有害。
Society would benefit from the ban on all forms of advertising because it may serve no useful purpose, and can even be damaging.
社会将受益于所有形式的广告禁令，因为它(广告)可能没有有用的目的，甚至可能具有破坏性。
Society would benefit from the ban on all forms of advertising because it may serve no useful purpose, and can even be damaging.
社会将受益于所有形式的广告禁令，因为它(广告)可能没有有用的目的，甚至可能具有破坏性。
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