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当越来越多的出版商把付费墙视为提高收入的一种合法手段时,找到一个有效解决内容付费问题的策略,只是一个时间早晚的问题。但是,纽约时报
When more and more publishers see paywalls as a legitimate means of raising revenue, finding an effective solution to the problem of content is just a matter of time. However, the New York Times