评论家认为这是资源浪费的恶性循环：贷款额度的扩大将使更多的学生可以支付高额学费，从而进入到更多高成本学校。
Critics allege a viciously wasteful circle: the size of the loan pool expands to enable students to pay ever higher fees to schools whose costs expand because money is coming their way.
尝试和错误恶性循环的过程是很浪费时间的。
还要记住的是，在循环中，每次反复都是在浪费时间，因此不要多次使用相同的循环，而是要尽量在一个循环中执行所有的操作。
Remember also that each iteration through the loop wastes time, so rather than working through the same loop a number of times, try to perform all the actions in one pass through the loop.
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