Wearing footwear first became important from functional point of view as it can protect the feet from cuts, bruises, heat, cold, etc.

穿鞋开始变得重要首先是鉴于其功能性：鞋能保护我们的脚，以防划伤、撞伤、烫伤、冻伤等等。

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And in such a way that it became a weapon in the cold war.

这样一来，它会变成冷战中的一件武器。

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Swimming around under an ice-cold waterfall became a decidedly good way to end the day after hoofing it for an average of 16 miles.

徒步走了16哩之后，在冰冷的瀑布下游一游成为结束一天最好的方法。

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"It became a little destructive, so I quit cold turkey and I decided to write something, " she says.

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Afterwards, of course, Mars became the cold, apparently lifeless, body that it is today.

ECONOMIST: Panspermia: Interplanetary migration | The

The Cold War quickly put an end to that illusion as it became clear there were only two powers that ultimately mattered--the U.S. and the Soviet Union--and that their interests were diametrically opposed.

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