“只有一小部分外来物种会在它们的新栖息地引发问题。”田纳西大学生态学和进化生物学教授唐·史密斯说。

"Only a small percentage of alien species cause problems in their new habitats,'' said Don Smith, professor of ecology and evolutionary biology at the University of Tennessee.

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田纳西大学生态学和进化生物学教授唐·史密斯说：“只有一小部分外来物种会在新栖息地引发问题。”

"Only a small percentage of alien species cause problems in their new habitats," said Don Smith, professor of ecology and evolutionary biology at the University of Tennessee.

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而对生物燃料来说，引发问题的是种植和生产过程中散发的微粒。

With biofuels, the problems are caused by particles given off during their growth and manufacture.

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Those people would bank their calories, survive the next famine, contribute to the gene pool, and thereby create what we have today which are organisms, humans, who very much like the kind of diets that are creating problems.

这些人储存能量以保证,在下一次饥荒时得以幸存,使他们的基因保留在了基因库中,从而造就今天的生物体,即人类,人类非常喜欢这类饮食,从而引发了很多问题

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