Most biologists now accept that the tree is not a fact of nature - it is something we impose on nature in an attempt to make the task of understanding it more tractable.

现在大多数生物学家都同意，这棵树不是自然生长的——这是人类试图使理解大自然这件差事更易驾驭而强加给自然界的有价值的事物。

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The idea of people as autonomous individuals has become something of a mantra in recent years, but in fact most of us make decisions within a social or family context.

人们的观念是自主决定已经成为近年来的口头禅，但在事实上，我们多数人做决定是在社会或是家庭环境中做出的。

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And liposuction (not, admittedly, something that most doctors would recommend) would be expected to make things worse, since it would get rid of the source of the hormones that regulate lipids.

而抽脂(诚然是大多数医生都不推荐的)则会被认为会使情况恶化，因为这会切断能够控制脂质的激素的来源。

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The effect of the two intertwined has been to make something of a mess of the statistics about the most popular news stories.

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Although the theory that describes the interaction of quarks and gluons is on a firm conceptual footing, it is so complicated in practice that it can take years to make a single calculation of something like the shape of a proton even using the most powerful supercomputers.

ECONOMIST: Protons: Holey grail | The

Getting the most out of medicines that do make it to market will require better relationships with health insurers, something D'Amelio, who has served on the board of insurer Humana, may also be able to help with.

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