If you can play a blind chess game,
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送交者: HunHunSheng 于 2007-04-19, 12:40:58:
回答: 跑一次马拉松还是很不容易的，要有时间，有好的心 由 coubert 于 2007-04-19, 10:58:40:
If you can play a blind chess game, then you can do a lot of visiualization during a 3 hour long run
visialization of eveyrthing useful in work. So you do not even waste any time
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