然而，“知识付费”的快速发展也存在一些问题。

However, the rapid development of "pay for knowledge" has a few problems.

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不幸的是，这个解决方案也存在一些问题。

Unfortunately, a few issues remain with this solution.

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然而，明星和消费者也存在一些问题。

There are, however, some problems for celebrities and the consumers.

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We expect universities to be fair to their students, to their employees, to their faculty, and pretty clear what some of those problems are.

我们都认为大学应该公正对待学生们，雇员们，教职工们，同时存在的一些问题也清晰明了。

普林斯顿公开课 - 人性课程节选