Alcohol is chemically similar to water, so it can work its way into bacterial cytoplasm, where it makes the proteins fall apart, killing the cell.

乙醇在化学上的性质与水相似，它能以自己独有的方式进入到细菌的细胞质当中，在这里，它会瓦解蛋白质并杀死细胞。

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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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Any of various bacterial products that, introduced in small amounts, protect an organism from an infection or a disease without killing the infectious agent.

任一种细菌产物，数量较小，在不杀死传染作用物的情况下保护微生物不受传染或疾病侵扰。

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