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来源：雅诚德英语网
Popularizing this is a very big question on one hand, especially to forum person of this kind of need enrages accumulative place, the user that did not secure group, he Lai content?
推广这一方面是个很大的问题，尤其是对论坛这种需要人气积聚的地方，没有固定的用户群，何来内容？