These eruptions have dramatically shaped life on Earth, pumping huge amounts of ash, dust and gas into the atmosphere that have killed off species and altered global climate.
这些火山的爆发引人注目地改变了地球上的生命，大量的火山灰、尘埃和气体注入大气，就会杀死很多物种和改变全球的气候。
We unwittingly altered their genomes so much that they became new species, providing us with far more food.
人类在狩猎采集这些物种的同时，也无意识地驯养了它们。我们无心的改变了它们的染色体，使它们成为新的物种，从而为我们提供更多的食物。
As a species, you are being biogenetically altered by the beings who created you and who redesign your DNA at periodic junctures in your history.
作为一个族类，你们是生物遗传改变，得靠创造你们的DNA和在历史的接合点重新设计你们的DNA来达到。
Root exudates markedly altered in species and quantity under heavy metal stress.
在重金属胁迫下，植物根系分泌物种类和量会发生显著变化。
Root exudates markedly altered in species and quantity under heavy metal stress.
在重金属胁迫下，植物根系分泌物种类和量会发生显著变化。
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