Fees also tend to soar because, even when they rise, captive parents are loth to pull out, not least because the alternative is likely to be an undersubscribed and underperforming state school.

学费也趋向猛涨，因为只要它涨，着了高价高质量迷的家长就不想更不想撒手，更重要的原因是只要一撒手，他们的剩下的选择可能就是资金欠缺又运营不良的公立学校了。