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。
And make some toxic mine sites a lot cleaner.
这样便使一些有害矿址变得干净许多。
Conclusion TZC might resist some toxic effect of mercury on nervous system in rats.
结论TZC在一定程度上能拮抗汞对神经系统毒性作用。
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
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
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