这种小型甲壳类动物的壳是由一种特殊的碳水化合物壳聚糖构成的。壳聚糖是一种天然的细菌杀手。
The shells of these small crustaceans are composed of a unique carbohydrate, chitosan, that's a natural microbe fighter.
最近国际医药专家建议道在A/H1N1病毒的持续传播中，吃东西时，大蒜是细菌最有潜力的天然杀手之一。 至此以后大蒜的价格开始飙升了。
The hike came after international medical experts' recent recommendation that amid the continual speading of A/H1N1, garlic is one of the best potent natural killers of bacteria when eaten with food.
据阿克力博士称，我们居家最糟糕的“隐形杀手”细菌要数那些我们看不到也闻不到但是却可以在七个小时内从单一的个体繁殖成成千上万的细菌群了。
According to Dr Ackerley, the worst bacteria in our homes are 'silent killers' that we cannot see or smell but that can multiply from a single bacterium to several million in just seven hours.
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