The extent of protection afforded should depend upon the risk of harm and the likelihood of benefit.
提供保护的程度应取决于伤害的机率以及好处的可能性。
Here, the likelihood of benefit to the individual is very small - it is estimated that 850 people need to take drugs to lower their blood pressure to prevent a single stroke.
而在这里，单一品种用药获利的可能性是非常小的：假设850人需要服用药物降低血压仅仅是为了防止中风。
There is an obvious benefit to this procedure, namely the simplicity of installing updates and the increased likelihood of running an up-to-date browser.
这种自动更新的模式有一个显而易见的好处，那就是安装更新的简洁性增强了，以及用户运行最新版本程序的可能性大大提高了。
Conclusion a sizeable proportion of patients with advanced cancer continue to undergo cancer screening tests that do not have a meaningful likelihood of providing benefit.
结论相当比例晚期癌症患者继续接受癌症筛查，不太可能提供有意义的益处。
Knowledge of basic information search techniques and principles will benefit the searcher and increase the likelihood that the search results will be useful.
基本信息搜索技术和原理的知识将有益于研究者，并增加搜索结果将是有用的的可能性。
A sizeable proportion of patients with advanced cancer continue to undergo cancer screening tests that do not have a meaningful likelihood of providing benefit.
相当比例晚期癌症患者继续接受癌症筛查，不太可能提供有意义的益处。
A sizeable proportion of patients with advanced cancer continue to undergo cancer screening tests that do not have a meaningful likelihood of providing benefit.
相当比例晚期癌症患者继续接受癌症筛查，不太可能提供有意义的益处。
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