Dr Bartels and Dr Pizarro knew from previous research that around 90% of people refuse the utilitarian act of killing one individual to save five.

Bartels博士和Pizarro博士从之前的研究中得知有90%的人不会选择这种实用主义的行为，牺牲一个救五个。

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When administered as part of an ACT regimen, the partner drug "covers for" the artemisinin by killing the parasites that were not killed by the artemisinin.

在联合疗法中，并用的配对药物可以佐助青蒿素，消灭青蒿素未能杀死的寄生虫。

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Apples also act as a toothbrush, cleaning teeth and killing bacteria in the mouth, which may reduce the risk of tooth decay.

苹果还有牙刷作用，洁齿和杀灭口腔细菌，减少龋齿的危险。

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the act of actually pushing someone over onto the tracks and killing him, you are actually killing him yourself.

真的动手把人推到轨道上让他死的这种行为，就等于是你亲手杀了他。

耶鲁公开课 - 公正课程节选

When Larry Kramer founded ACT UP and accused Koch of killing most of his friends, the mayor wanted to meet with him, but he was dissuaded by his staff from doing so.

CNN: Koch a friend and force to the end

Zimmerman, who is Hispanic, told authorities the killing was an act of self-defense.

CNN: STORY HIGHLIGHTS

President Mwai Kibaki described Bin Laden's killing as an act of justice for those Kenyans who lost their lives and suffered injuries in al-Qaeda's first attack on US interests.

BBC: Bin Laden death reminds Kenya of bombing horrors