Scientists at University of Helsinki in Finland and Australian National University looked at 24 trials involving 10, 708 participants and found that Vitamin C had no effect on preventing a cold.

芬兰赫尔辛基大学和奥地利国立大学的科学家回顾了总共涉及10708名被试的24项研究，发现维生素C不能有效地预防感冒。

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That fact, by itself, is not a negative, but it has the effect of leaving some discussions, especially those involving the morality of war, feeling unfinished.

单独来说，这并不是负面的，不过它会有留下争议的风险，尤其是有关战争的道德、未完成的感情等方面。

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Network system can produce a special economies of scale effect, geographical coverage is wider, involving more subjects, the more beneficial to reduce logistics costs.

网络系统可产生一种特殊的规模经济效应，覆盖地域越广，涉及的对象越多，越有利于降低物流成本。

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The overwhelming number of studies showing problems have resulted from injection studies involving rates, in which the natural metabolizing impact effect of digestion is bypassed.

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"The university is pleased that the Welsh government has decided to cancel with immediate effect the statutory consultation process involving the dissolution of Cardiff Metropolitan University which we believe was legally and financially flawed, " she said.

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He says fatality investigations involving firefighters often include statements to the effect of "We didn't think the fire was going to do that" even when all of the available information about risks was there to enable safe decisions.

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