在当今计算机领域中，网络安全是最热门的课题之一，而网络主动防御则是网络安全重要的一环。
In computer field in the nowadays, the network safety is one of the most popular problem, but that the network defense on self's own initiative is that the network safety is important one ring then.
许多科学家和专家警告说，在动物饲料中滥用抗生素，如青霉素、四环素，会滋生流行病，而这种流行病是没有医药可以防御的。
Many scientists and experts warn that rampant use of antibiotics in animal feed, like penicillin and tetracycline, will breed an epidemic that medicine has no defense against.
这样的情形，同样适用于泄露出的一份代号为Eagle Guardian文件，此文件显示出北约将在波兰和一些环波罗的海国家部署防御设施的新计划文件。
Much the same applies to disclosures about NATO’s new plans for defending Poland and the Baltic states.
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