That's true. There are 5 people in our office who signed up for
来源:
EnLearner
于
2012-01-29 12:52:48
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有一帮人有同样的爱好,就有了一种气氛,兴趣也比较容易持续下去。
有些老美练起来很卖力,我算比较保守的 :-)