Along with killing bacteria in the water, the filters also prevent further bacterial growth.

在杀灭水中的病毒的同时， 净水机也能够防止细菌增长。

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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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C. Conventional wastewater purification systems have not been fully successful in killing bacteria at cold temperatures.

传统的废水净化系统在低温下并不能完全成功地杀灭细菌。

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Tests showed that instead of killing the bacteria, the bleach actually caused the bacteria levels to increase.

VOA: special.2009.10.13

It pasteurises by killing bacteria at low temperatures without compromising taste and nutritional value, allowing food to remain fresher for longer.

BBC: Juicing firm

The study used an older formula replaced last year with Purell Advanced, an alcohol-based product the company says is more effective at killing bacteria and even easier on the skin.

WSJ: How Alcohol-Free Hand Sanitizers Hold Up

Professor Alexander Trees and his team from the Liverpool School of Tropical Medicine and the University of Liverpool's faculty of veterinary science, found that killing bacteria which are abundant in the worm tissues leads to its death.

BBC: River blindness 'breakthrough'