Kevin Carey说：“这是随着时代的变化而变化的，现在读大学的费用比以前要高多了；因此当人们思考读大学的成本和收益比时，读大学的成本变得越来越高，这让他们变得越来越纠结——他们越来越考虑读完大学后他们会得到什么样的收益。”

College is much, much more expensive than it used to be," he says. "So when people are wrestling with that cost-benefit equation, the cost part of it has gotten bigger and bigger.

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