求翻译：Swimming is an ancient discipline. For most people nowadays, swimming is recreation practiced in the sea or in indoor and outdoor swimming pools.是什么意思？

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悬赏分：1 - 离问题结束还有

Swimming is an ancient discipline. For most people nowadays, swimming is recreation practiced in the sea or in indoor and outdoor swimming pools.

问题补充：

匿名	2013-05-23 12:21:38 游泳是一个古老的学科。时下对于大多数人，游泳是在海上实行休闲，或在室内和室外游泳池。

匿名	2013-05-23 12:23:18

匿名	2013-05-23 12:24:58

匿名	2013-05-23 12:26:38

匿名	2013-05-23 12:28:18

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