not much time to practice each time

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送交者: eng 于 2009-10-16, 09:17:57:

回答: 锻炼的效果当然是式越多、时间越长的越好 由 方舟子 于 2009-10-16, 03:34:47:

So have to keep it short. Self learning is less of a problem for me right now.


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