The human brain is an incredible work of art and providing it with simple challenges will keep it fresh and alive.

因此，对于人脑这样一件不可思议的艺术品，每天对他来一点简单的小挑战可以让他保持新鲜感和充满活力。

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Their best work , The Sun Also Rises and Casablanca , remains as fresh and alive now as the day it first appeared .

他们各自的代表作，《太阳照常升起》和《卡萨布兰卡》常葆青春，魅力一如当年。

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Perhaps the oddest aspect was that the report itself was presented as if it were a campaign for menthol, full of pictures of happy children and mottos like "fresh and alive."

可能最让人觉得滑稽古怪的是提出的报告本身似乎是在为薄荷香烟做宣传，报告里面随处是幸福欢乐的儿童图片，还有象“新鲜有活力”等漂亮的格言。

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So food moves about all over the place, alive or dead, and is kept fresh or safe by many means, some artificial.

ECONOMIST: They’re burning animals again | The

The ichneumon wasp paralyses its prey without killing it and lays its larva inside this convenient source of fresh meat, to eat it slowly alive.

ECONOMIST: The evidence for evolution

In the medium term, the big need is to keep alive small farmers who cannot expect fresh harvests of basic crops grains and beans until mid-1999, and ensuring they have the tools and seed to do even that.

ECONOMIST: Central America