翻译原文：

U.S. Education Secretary Margaret Spellings on Wednesday proposed "a more nuanced" way of evaluating schools under President Bush's No Child Left Behind school reform law — one that would differentiate between schools that are close to meeting state math, reading and science standards and those that are "chronic, chronic underperformers."

 Under the proposed change, public schools with just a few struggling students could help students without being labeled underperforming. In the bargain, they'd avoid sanctions that can include firing staff, privatizing or even closing their doors.

The law currently doesn't differentiate between the two. It breaks down schools' test scores by at least 36 categories, and if even one group of students — for instance, Hispanic or disabled students — doesn't improve, the entire school misses its "adequate yearly progress" goal.

That has been a major source of heartburn for educators. Recent figures show that about 2,300 of the nation's 90,000 public schools are being "restructured" under the law. That number will likely grow as more students miss progress goals.

The change, which Spellings floated during an interview with USA TODAY's editorial board, could quiet critics and help make No Child Left Behind more palatable as Congress prepares to reauthorize it. Spellings' spokeswoman, Katherine McLane, says Spellings has discussed the proposal with lawmakers.