Not many of our readers would choose to go for a swim in such low temperatures, but in some countries, ice swimming has been popular for centuries.

我们的读者中没有多少人会选择在如此低温下游泳，但在某些国家，冰泳已经流行了好几个世纪。

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Then, with indescribable terror, he recognizes the fact that he is caught in a quicksand, and that he has beneath him that frightful medium in which neither man can walk nor fish can swim.

于是他变得无可名状地惊恐起来，意识到他已被围困在流沙之中，在他下面是人不能走、鱼不能游的恐怖地带。

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While a chimpanzee can easily escape a leopard by climbing a tree, a dolphin has nowhere to swim from a shark.

黑猩猩爬上树去就可以很容易地避开豹子的追捕，但是海豚要在水中避开鲨鱼却很难。

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A visitor has to resist the urge to jump in for a swim.

VOA: special.2009.09.21

Our driver, too smart to swim, has a camera.

WSJ: Cold-Water Swimming in Alaska

Michael Phelps has traded in his swim flippers for a set of golf clubs.

WSJ: Michael Phelps: From the Pool to the Golf Course

The 36-year-old once sported a ponytail, used to swim a mile a day, breeds race horses and has even sung on two pop singles.

BBC: Peter Ebdon