According to recent studies, a caterpillar can sense when a plant is about to unleash its chemical weapons and counter by producing anti-toxins to neutralize the plant's attack.

据最新研究表明，毛毛虫可以感应植物何时准备释放“化学武器”，而分泌有毒物质抗体，与植物抗衡。

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This apparently walks back from a Bush-era declaration that underscored the possibility that the United States might use nuclear weapons if it suffered a chemical or biological attack.

这显然是走回布什时代的宣言，强调了美国可能会使用核武器如果它受到了化学或生物武器的袭击的可能性。

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According to recent studies, a caterpillar can sense when a plant is about to unleash its chemical weapons and counter act by producing anti-toxins to neutralize the plant's attack.

据最新研究表明，毛毛虫可以感应植物何时准备释放“化学武器”，而分泌有毒物质抗体，与植物抗衡。

youdao

Not long ago, the Bush administration quietly asserted that it might use nuclear weapons in a conflict first if the US suffers a biological or chemical weapons attack.

NPR: Nuclear Weapons Gain Importance for Regional Powers

Anthony Loyd, a journalist for the Times newspaper, told the BBC about the aftermath of one suspected chemical weapons attack earlier this month in the northern city of Aleppo.

BBC: 'Growing evidence' of chemical weapons use in Syria - UK

While Ban told reporters at the United Nations he was aware of the rebel claims of a chemical weapons attack by the government, he did not say whether those claims will also be investigated.

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