Snake venom is a mixture of proteins, some toxic, poisonous, and some not.

蛇毒是一种蛋白质的混合物，有些有毒，有些没毒。

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These nano-sized sensors would float around the bloodstream until they ran into some toxic chemical or disease-causing germ.

这些纳米级的传感器将沿着血流漂流，直到它们遇到有毒化学物质或致病菌。

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They also suggest that failing to clear away some toxic proteins may play a role in brain disorders.

他们还认为，未能有效清理脑中有毒蛋白质将有可能导致脑部疾病的发生。

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Professor Ervin says this means that some farmers are again using the more toxic herbicides to control weeds.

VOA: special.2010.04.27

However, their biological relatives in Mexico would presumably have that same risk, but it would never be manifested if they're not exposed to what some have called a toxic food and physical activity environment.

而且,他们远在墨西哥的血缘亲属,可能也面临同样风险,但他们面临着所谓的有毒食物和活动环境,这个说法就不会得到证实

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Ervin says that means some farmers have returned to using soil-disturbing tillage or more toxic herbicides to control weeds.

VOA: standard.2010.04.15

Gaidar's spokesman says doctors can't explain the illness, and suspect some form of toxic poisoning.

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You can't walk anywhere on Wall Street these days without stepping in some kind of toxic assets.

FORBES: Special Report

Since banks might now be more capable of holding on to some of these toxic assets on their own, they won't need the government to take it off their hands.

FORBES: Accounting