The material typically used for the pages was parchment, which is animal skin that's stretched and dried under tension, so it become s really flat and can be written on.

书页通常使用的材料是羊皮纸，羊皮纸是一种动物的皮肤，其在张力的作用下被拉伸和变干，因此它会变得非常平整，并且你可以在上面写字。

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The volunteers were then shown dozens of the pictures and asked to click on their computer mouse when the first animal in their memorized sequence occurred, then the second and so on.

实验结束后，研究人员要求这些老年人根据自己的记忆在电脑屏幕上按图片出现顺序点击动物图片。

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And not an animal on the farm had stolen so much as a mouthful.

庄园里的任何动物都没有偷吃哪怕一小口。

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Imagine a virus, for instance, that captured an animal's brain and then modified the animal's brain such that the animal would run out and bite other animals so as to pass on the virus.

想象一个病毒，例如，控制动物大脑，然后修改大脑,这个动物会跑出去咬其他动物,以传播病毒。

耶鲁公开课 - 心理学导论课程节选

Two days later I got a cold call from a producer at Hoff Productions near San Francisco, who do a lot of stuff for Animal Planet, Discovery, the Speed Network and so on.

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Almost single-handedly he took moral philosophy back to an earlier tradition of direct engagement with the world, and in doing so has made three substantial contributions to ethical debate: on animal rights, on poverty and on euthanasia.

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Moreover, our reliance on so few plants and animal breeds makes human populations that much more vulnerable to climate change: as growing conditions change, the most suitable species, breeds or strains in a given region may likewise change.

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