Public schooling is truly free: no book fees, no music fees, no athletic fees.
公立学校的的确确是免费的：不收书本费，不收音乐课费用，不收体育课费用。
What's more, there are no fees and developers join by recommending their current users to purchase apps, music, books or movies from the Openspace Store.
值得一提的是，开发者只需推荐他们现有的用户通过Openspace去购买应用，音乐，书籍或者电影就可以免费加入。
What's more, there are no fees and developers join by recommending their current users to purchase apps, music, books or movies from the Openspace Store.
值得一提的是，开发者只需推荐他们现有的用户通过Openspace去购买应用，音乐，书籍或者电影就可以免费加入。
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