Now, scientists are considering waging biological and genetic warfare against mosquitoes.

现在，科学家们正考虑对蚊子进行生物及基因战。

If we get involved in biological warfare, I think we'll have some warning.

如果我们卷入生物战，我想我们会有一些警告。

Natalie is saying that if we are involved in biological warfare, we'll have some warning.

娜塔莉说如果我们卷入生物战，我们会得到一些警告。

Some see anthrax as a desirable weapon of biological warfare because the bacteria create their own spores.

一些人认为炭疽是一种理想的生物战武器， 因为细菌会产生自己的孢子。

While this primitive act of biological warfare might have happened, it’s unlikely to be what actually spread the plague.

虽然这种原始的生物战行为可能已经发生，但它不太可能是真正传播瘟疫的原因。

Unit 731 was a top-secret biological and chemical warfare research base established in Harbin as the nerve center for Japanese biological warfare in China and Southeast Asia during World War II.

731部队是日军在哈尔滨建立的高度保密的生物战和化学战研究基地，是二战期间，日军使用生物战打击中国和东南亚的神经中枢。

The extremely powerful toxin Ricin, produced in the seeds of the castor oil plant, can kill you if you inhale even one milligram, which has made it popular for assassination attempts and biological warfare around the world.

蓖麻油植物种子中产生的毒性极强的蓖麻毒素，只要你吸入一毫克，就会致命，这使得它成为世界各地暗杀企图和生物战的常用武器。