人类演变为节约能量,而不是浪费能量,而且迄今为止我们聪明的机体已经成功挫败了几乎所有科学家们的治疗肥胖症的意图。
Humans evolved to conserve energy, not waste it, and so far our clever bodies have managed to foil nearly all of scientists' attempts to treat obesity.
不管有没有人类的影响,生态系统都会随时间演变,因此没有人可以说出夏威夷看起来应该是什么样的。
Ecosystems change over time, with or without the involvement of mankind, so no one can tell what Hawaii should look like.
之前的研究表明这种基因变种让人类更容易演变成慢性阻塞性肺疾病,而当前的研究则对这种现象给出了一个解释。
Previous research showed that this gene variant makes humans more liable to develop chronic-obstructive disease (COPD), and the current study provides an explanation for this observation.
"For we assert," he says, "nature does nothing in vain and man alone " among the animals has speech.
他说,“因为我们主张自然演变并不无道理,而人类独立于其它动物之外,是因为我们有辩论能力。
The polis is natural in the sense that it has grown out of smaller and lesser forms of human association.
城邦是自然的演变,因为它源自,较小单位形式的人类结合。
Aristotle's claim about naturalness seems to require, as he told us, slavery, the categorical distinction of humanity into masters and slaves.
亚里士多德关于自然演变的主张,似乎包含了奴役,分类地,将人类区别成主与奴。
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